21119868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:448

約数の個数: 144

約数和(自身を含む): 70237440

約数和(自身を除く): 49117572

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 19, 21, 22, 28, 33, 36, 38, 42, 44, 57, 63, 66, 76, 77, 84, 99, 114, 126, 132, 133, 154, 171, 198, 209, 228, 231, 252, 266, 308, 342, 396, 399, 401, 418, 462, 532, 627, 684, 693, 798, 802, 836, 924, 1197, 1203, 1254, 1386, 1463, 1596, 1604, 1881, 2394, 2406, 2508, 2772, 2807, 2926, 3609, 3762, 4389, 4411, 4788, 4812, 5614, 5852, 7218, 7524, 7619, 8421, 8778, 8822, 11228, 13167, 13233, 14436, 15238, 16842, 17556, 17644, 22857, 25263, 26334, 26466, 30476, 30877, 33684, 39699, 45714, 50526, 52668, 52932, 53333, 61754, 68571, 79398, 83809, 91428, 92631, 101052, 106666, 123508, 137142, 158796, 159999, 167618, 185262, 213332, 251427, 274284, 277893, 319998, 335236, 370524, 479997, 502854, 555786, 586663, 639996, 754281, 959994, 1005708, 1111572, 1173326, 1508562, 1759989, 1919988, 2346652, 3017124, 3519978, 5279967, 7039956, 10559934, 21119868]

約数ペア:

[(1, 21119868), (2, 10559934), (3, 7039956), (4, 5279967), (6, 3519978), (7, 3017124), (9, 2346652), (11, 1919988), (12, 1759989), (14, 1508562), (18, 1173326), (19, 1111572), (21, 1005708), (22, 959994), (28, 754281), (33, 639996), (36, 586663), (38, 555786), (42, 502854), (44, 479997), (57, 370524), (63, 335236), (66, 319998), (76, 277893), (77, 274284), (84, 251427), (99, 213332), (114, 185262), (126, 167618), (132, 159999), (133, 158796), (154, 137142), (171, 123508), (198, 106666), (209, 101052), (228, 92631), (231, 91428), (252, 83809), (266, 79398), (308, 68571), (342, 61754), (396, 53333), (399, 52932), (401, 52668), (418, 50526), (462, 45714), (532, 39699), (627, 33684), (684, 30877), (693, 30476), (798, 26466), (802, 26334), (836, 25263), (924, 22857), (1197, 17644), (1203, 17556), (1254, 16842), (1386, 15238), (1463, 14436), (1596, 13233), (1604, 13167), (1881, 11228), (2394, 8822), (2406, 8778), (2508, 8421), (2772, 7619), (2807, 7524), (2926, 7218), (3609, 5852), (3762, 5614), (4389, 4812), (4411, 4788)]