21560868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1277}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 63266112

約数和(自身を除く): 41705244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 67, 84, 126, 134, 201, 252, 268, 402, 469, 603, 804, 938, 1206, 1277, 1407, 1876, 2412, 2554, 2814, 3831, 4221, 5108, 5628, 7662, 8442, 8939, 11493, 15324, 16884, 17878, 22986, 26817, 35756, 45972, 53634, 80451, 85559, 107268, 160902, 171118, 256677, 321804, 342236, 513354, 598913, 770031, 1026708, 1197826, 1540062, 1796739, 2395652, 3080124, 3593478, 5390217, 7186956, 10780434, 21560868]

約数ペア:

[(1, 21560868), (2, 10780434), (3, 7186956), (4, 5390217), (6, 3593478), (7, 3080124), (9, 2395652), (12, 1796739), (14, 1540062), (18, 1197826), (21, 1026708), (28, 770031), (36, 598913), (42, 513354), (63, 342236), (67, 321804), (84, 256677), (126, 171118), (134, 160902), (201, 107268), (252, 85559), (268, 80451), (402, 53634), (469, 45972), (603, 35756), (804, 26817), (938, 22986), (1206, 17878), (1277, 16884), (1407, 15324), (1876, 11493), (2412, 8939), (2554, 8442), (2814, 7662), (3831, 5628), (4221, 5108)]