21285952

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:239

約数の個数: 56

約数和(自身を含む): 44302680

約数和(自身を除く): 23016728

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 89, 101, 148, 178, 202, 296, 356, 404, 592, 712, 808, 1184, 1424, 1616, 2368, 2848, 3232, 3293, 3737, 5696, 6464, 6586, 7474, 8989, 13172, 14948, 17978, 26344, 29896, 35956, 52688, 59792, 71912, 105376, 119584, 143824, 210752, 239168, 287648, 332593, 575296, 665186, 1330372, 2660744, 5321488, 10642976, 21285952]

約数ペア:

[(1, 21285952), (2, 10642976), (4, 5321488), (8, 2660744), (16, 1330372), (32, 665186), (37, 575296), (64, 332593), (74, 287648), (89, 239168), (101, 210752), (148, 143824), (178, 119584), (202, 105376), (296, 71912), (356, 59792), (404, 52688), (592, 35956), (712, 29896), (808, 26344), (1184, 17978), (1424, 14948), (1616, 13172), (2368, 8989), (2848, 7474), (3232, 6586), (3293, 6464), (3737, 5696)]