21940808

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{88471}}^1$

素因数の和:88508

約数の個数: 16

約数和(自身を含む): 42466560

約数和(自身を除く): 20525752

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 88471, 176942, 353884, 707768, 2742601, 5485202, 10970404, 21940808]

約数ペア:

[(1, 21940808), (2, 10970404), (4, 5485202), (8, 2742601), (31, 707768), (62, 353884), (124, 176942), (248, 88471)]