21375418

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 36224640

約数和(自身を除く): 14849222

約数列:

[1, 2, 19, 23, 37, 38, 46, 74, 437, 661, 703, 851, 874, 1322, 1406, 1702, 12559, 15203, 16169, 24457, 25118, 30406, 32338, 48914, 288857, 464683, 562511, 577714, 929366, 1125022, 10687709, 21375418]

約数ペア:

[(1, 21375418), (2, 10687709), (19, 1125022), (23, 929366), (37, 577714), (38, 562511), (46, 464683), (74, 288857), (437, 48914), (661, 32338), (703, 30406), (851, 25118), (874, 24457), (1322, 16169), (1406, 15203), (1702, 12559)]