21900112

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{499}}^1$

素因数の和:731

約数の個数: 40

約数和(自身を含む): 46004000

約数和(自身を除く): 24103888

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 211, 422, 499, 844, 998, 1688, 1996, 2743, 3376, 3992, 5486, 6487, 7984, 10972, 12974, 21944, 25948, 43888, 51896, 103792, 105289, 210578, 421156, 842312, 1368757, 1684624, 2737514, 5475028, 10950056, 21900112]

約数ペア:

[(1, 21900112), (2, 10950056), (4, 5475028), (8, 2737514), (13, 1684624), (16, 1368757), (26, 842312), (52, 421156), (104, 210578), (208, 105289), (211, 103792), (422, 51896), (499, 43888), (844, 25948), (998, 21944), (1688, 12974), (1996, 10972), (2743, 7984), (3376, 6487), (3992, 5486)]