21663056

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:148

約数の個数: 60

約数和(自身を含む): 46059552

約数和(自身を除く): 24396496

約数列:

[1, 2, 4, 8, 16, 23, 37, 43, 46, 74, 86, 92, 148, 172, 184, 296, 344, 368, 592, 688, 851, 989, 1369, 1591, 1702, 1978, 2738, 3182, 3404, 3956, 5476, 6364, 6808, 7912, 10952, 12728, 13616, 15824, 21904, 25456, 31487, 36593, 58867, 62974, 73186, 117734, 125948, 146372, 235468, 251896, 292744, 470936, 503792, 585488, 941872, 1353941, 2707882, 5415764, 10831528, 21663056]

約数ペア:

[(1, 21663056), (2, 10831528), (4, 5415764), (8, 2707882), (16, 1353941), (23, 941872), (37, 585488), (43, 503792), (46, 470936), (74, 292744), (86, 251896), (92, 235468), (148, 146372), (172, 125948), (184, 117734), (296, 73186), (344, 62974), (368, 58867), (592, 36593), (688, 31487), (851, 25456), (989, 21904), (1369, 15824), (1591, 13616), (1702, 12728), (1978, 10952), (2738, 7912), (3182, 6808), (3404, 6364), (3956, 5476)]