21424390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1699}}^1$

素因数の和:1816

約数の個数: 32

約数和(自身を含む): 41983200

約数和(自身を除く): 20558810

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 1699, 2522, 3398, 6305, 8495, 12610, 16990, 22087, 44174, 110435, 164803, 220870, 329606, 824015, 1648030, 2142439, 4284878, 10712195, 21424390]

約数ペア:

[(1, 21424390), (2, 10712195), (5, 4284878), (10, 2142439), (13, 1648030), (26, 824015), (65, 329606), (97, 220870), (130, 164803), (194, 110435), (485, 44174), (970, 22087), (1261, 16990), (1699, 12610), (2522, 8495), (3398, 6305)]