21583432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 24381368

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 71, 74, 79, 104, 142, 148, 158, 284, 296, 316, 481, 568, 632, 923, 962, 1027, 1846, 1924, 2054, 2627, 2923, 3692, 3848, 4108, 5254, 5609, 5846, 7384, 8216, 10508, 11218, 11692, 21016, 22436, 23384, 34151, 37999, 44872, 68302, 72917, 75998, 136604, 145834, 151996, 207533, 273208, 291668, 303992, 415066, 583336, 830132, 1660264, 2697929, 5395858, 10791716, 21583432]

約数ペア:

[(1, 21583432), (2, 10791716), (4, 5395858), (8, 2697929), (13, 1660264), (26, 830132), (37, 583336), (52, 415066), (71, 303992), (74, 291668), (79, 273208), (104, 207533), (142, 151996), (148, 145834), (158, 136604), (284, 75998), (296, 72917), (316, 68302), (481, 44872), (568, 37999), (632, 34151), (923, 23384), (962, 22436), (1027, 21016), (1846, 11692), (1924, 11218), (2054, 10508), (2627, 8216), (2923, 7384), (3692, 5846), (3848, 5609), (4108, 5254)]