21251954

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 13740046

約数列:

[1, 2, 23, 29, 46, 58, 89, 178, 179, 358, 667, 1334, 2047, 2581, 4094, 4117, 5162, 5191, 8234, 10382, 15931, 31862, 59363, 118726, 119393, 238786, 366413, 461999, 732826, 923998, 10625977, 21251954]

約数ペア:

[(1, 21251954), (2, 10625977), (23, 923998), (29, 732826), (46, 461999), (58, 366413), (89, 238786), (178, 119393), (179, 118726), (358, 59363), (667, 31862), (1334, 15931), (2047, 10382), (2581, 8234), (4094, 5191), (4117, 5162)]