21398884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{10037}}^1$

素因数の和:10095

約数の個数: 24

約数和(自身を含む): 41316408

約数和(自身を除く): 19917524

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 10037, 20074, 40148, 130481, 260962, 411517, 521924, 823034, 1646068, 5349721, 10699442, 21398884]

約数ペア:

[(1, 21398884), (2, 10699442), (4, 5349721), (13, 1646068), (26, 823034), (41, 521924), (52, 411517), (82, 260962), (164, 130481), (533, 40148), (1066, 20074), (2132, 10037)]