21167420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34141}}^1$

素因数の和:34181

約数の個数: 24

約数和(自身を含む): 45886848

約数和(自身を除く): 24719428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34141, 68282, 136564, 170705, 341410, 682820, 1058371, 2116742, 4233484, 5291855, 10583710, 21167420]

約数ペア:

[(1, 21167420), (2, 10583710), (4, 5291855), (5, 4233484), (10, 2116742), (20, 1058371), (31, 682820), (62, 341410), (124, 170705), (155, 136564), (310, 68282), (620, 34141)]