21068502

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:893

約数の個数: 64

約数和(自身を含む): 53028864

約数和(自身を除く): 31960362

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 47, 78, 91, 94, 141, 182, 273, 282, 329, 546, 611, 658, 821, 987, 1222, 1642, 1833, 1974, 2463, 3666, 4277, 4926, 5747, 8554, 10673, 11494, 12831, 17241, 21346, 25662, 32019, 34482, 38587, 64038, 74711, 77174, 115761, 149422, 224133, 231522, 270109, 448266, 501631, 540218, 810327, 1003262, 1504893, 1620654, 3009786, 3511417, 7022834, 10534251, 21068502]

約数ペア:

[(1, 21068502), (2, 10534251), (3, 7022834), (6, 3511417), (7, 3009786), (13, 1620654), (14, 1504893), (21, 1003262), (26, 810327), (39, 540218), (42, 501631), (47, 448266), (78, 270109), (91, 231522), (94, 224133), (141, 149422), (182, 115761), (273, 77174), (282, 74711), (329, 64038), (546, 38587), (611, 34482), (658, 32019), (821, 25662), (987, 21346), (1222, 17241), (1642, 12831), (1833, 11494), (1974, 10673), (2463, 8554), (3666, 5747), (4277, 4926)]