21018816

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:439

約数の個数: 168

約数和(自身を含む): 74334624

約数和(自身を除く): 53315808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 64, 72, 78, 84, 91, 96, 104, 112, 117, 126, 144, 156, 168, 182, 192, 208, 224, 234, 252, 273, 288, 312, 336, 364, 401, 416, 448, 468, 504, 546, 576, 624, 672, 728, 802, 819, 832, 936, 1008, 1092, 1203, 1248, 1344, 1456, 1604, 1638, 1872, 2016, 2184, 2406, 2496, 2807, 2912, 3208, 3276, 3609, 3744, 4032, 4368, 4812, 5213, 5614, 5824, 6416, 6552, 7218, 7488, 8421, 8736, 9624, 10426, 11228, 12832, 13104, 14436, 15639, 16842, 17472, 19248, 20852, 22456, 25263, 25664, 26208, 28872, 31278, 33684, 36491, 38496, 41704, 44912, 46917, 50526, 52416, 57744, 62556, 67368, 72982, 76992, 83408, 89824, 93834, 101052, 109473, 115488, 125112, 134736, 145964, 166816, 179648, 187668, 202104, 218946, 230976, 250224, 269472, 291928, 328419, 333632, 375336, 404208, 437892, 500448, 538944, 583856, 656838, 750672, 808416, 875784, 1000896, 1167712, 1313676, 1501344, 1616832, 1751568, 2335424, 2627352, 3002688, 3503136, 5254704, 7006272, 10509408, 21018816]

約数ペア:

[(1, 21018816), (2, 10509408), (3, 7006272), (4, 5254704), (6, 3503136), (7, 3002688), (8, 2627352), (9, 2335424), (12, 1751568), (13, 1616832), (14, 1501344), (16, 1313676), (18, 1167712), (21, 1000896), (24, 875784), (26, 808416), (28, 750672), (32, 656838), (36, 583856), (39, 538944), (42, 500448), (48, 437892), (52, 404208), (56, 375336), (63, 333632), (64, 328419), (72, 291928), (78, 269472), (84, 250224), (91, 230976), (96, 218946), (104, 202104), (112, 187668), (117, 179648), (126, 166816), (144, 145964), (156, 134736), (168, 125112), (182, 115488), (192, 109473), (208, 101052), (224, 93834), (234, 89824), (252, 83408), (273, 76992), (288, 72982), (312, 67368), (336, 62556), (364, 57744), (401, 52416), (416, 50526), (448, 46917), (468, 44912), (504, 41704), (546, 38496), (576, 36491), (624, 33684), (672, 31278), (728, 28872), (802, 26208), (819, 25664), (832, 25263), (936, 22456), (1008, 20852), (1092, 19248), (1203, 17472), (1248, 16842), (1344, 15639), (1456, 14436), (1604, 13104), (1638, 12832), (1872, 11228), (2016, 10426), (2184, 9624), (2406, 8736), (2496, 8421), (2807, 7488), (2912, 7218), (3208, 6552), (3276, 6416), (3609, 5824), (3744, 5614), (4032, 5213), (4368, 4812)]