21383924

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 38820096

約数和(自身を除く): 17436172

約数列:

[1, 2, 4, 31, 62, 124, 331, 521, 662, 1042, 1324, 2084, 10261, 16151, 20522, 32302, 41044, 64604, 172451, 344902, 689804, 5345981, 10691962, 21383924]

約数ペア:

[(1, 21383924), (2, 10691962), (4, 5345981), (31, 689804), (62, 344902), (124, 172451), (331, 64604), (521, 41044), (662, 32302), (1042, 20522), (1324, 16151), (2084, 10261)]