21315848

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 23335672

約数列:

[1, 2, 4, 8, 23, 31, 37, 46, 62, 74, 92, 101, 124, 148, 184, 202, 248, 296, 404, 713, 808, 851, 1147, 1426, 1702, 2294, 2323, 2852, 3131, 3404, 3737, 4588, 4646, 5704, 6262, 6808, 7474, 9176, 9292, 12524, 14948, 18584, 25048, 26381, 29896, 52762, 72013, 85951, 105524, 115847, 144026, 171902, 211048, 231694, 288052, 343804, 463388, 576104, 687608, 926776, 2664481, 5328962, 10657924, 21315848]

約数ペア:

[(1, 21315848), (2, 10657924), (4, 5328962), (8, 2664481), (23, 926776), (31, 687608), (37, 576104), (46, 463388), (62, 343804), (74, 288052), (92, 231694), (101, 211048), (124, 171902), (148, 144026), (184, 115847), (202, 105524), (248, 85951), (296, 72013), (404, 52762), (713, 29896), (808, 26381), (851, 25048), (1147, 18584), (1426, 14948), (1702, 12524), (2294, 9292), (2323, 9176), (2852, 7474), (3131, 6808), (3404, 6262), (3737, 5704), (4588, 4646)]