21639028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1427}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 40303872

約数和(自身を除く): 18664844

約数列:

[1, 2, 4, 17, 34, 68, 223, 446, 892, 1427, 2854, 3791, 5708, 7582, 15164, 24259, 48518, 97036, 318221, 636442, 1272884, 5409757, 10819514, 21639028]

約数ペア:

[(1, 21639028), (2, 10819514), (4, 5409757), (17, 1272884), (34, 636442), (68, 318221), (223, 97036), (446, 48518), (892, 24259), (1427, 15164), (2854, 7582), (3791, 5708)]