21731908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{9319}}^1$

素因数の和:9387

約数の個数: 24

約数和(自身を含む): 42275520

約数和(自身を除く): 20543612

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 212, 583, 1166, 2332, 9319, 18638, 37276, 102509, 205018, 410036, 493907, 987814, 1975628, 5432977, 10865954, 21731908]

約数ペア:

[(1, 21731908), (2, 10865954), (4, 5432977), (11, 1975628), (22, 987814), (44, 493907), (53, 410036), (106, 205018), (212, 102509), (583, 37276), (1166, 18638), (2332, 9319)]