21888776

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{281}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 51166080

約数和(自身を除く): 29277304

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 107, 182, 214, 281, 364, 428, 562, 728, 749, 856, 1124, 1391, 1498, 1967, 2248, 2782, 2996, 3653, 3934, 5564, 5992, 7306, 7868, 9737, 11128, 14612, 15736, 19474, 25571, 29224, 30067, 38948, 51142, 60134, 77896, 102284, 120268, 204568, 210469, 240536, 390871, 420938, 781742, 841876, 1563484, 1683752, 2736097, 3126968, 5472194, 10944388, 21888776]

約数ペア:

[(1, 21888776), (2, 10944388), (4, 5472194), (7, 3126968), (8, 2736097), (13, 1683752), (14, 1563484), (26, 841876), (28, 781742), (52, 420938), (56, 390871), (91, 240536), (104, 210469), (107, 204568), (182, 120268), (214, 102284), (281, 77896), (364, 60134), (428, 51142), (562, 38948), (728, 30067), (749, 29224), (856, 25571), (1124, 19474), (1391, 15736), (1498, 14612), (1967, 11128), (2248, 9737), (2782, 7868), (2996, 7306), (3653, 5992), (3934, 5564)]