20708792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1151}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 21385288

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1151, 1384, 2249, 2302, 4498, 4604, 8996, 9208, 14963, 17992, 29926, 59852, 119704, 199123, 398246, 796492, 1592984, 2588599, 5177198, 10354396, 20708792]

約数ペア:

[(1, 20708792), (2, 10354396), (4, 5177198), (8, 2588599), (13, 1592984), (26, 796492), (52, 398246), (104, 199123), (173, 119704), (346, 59852), (692, 29926), (1151, 17992), (1384, 14963), (2249, 9208), (2302, 8996), (4498, 4604)]