20619928

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12697}}^1$

素因数の和:12739

約数の個数: 32

約数和(自身を含む): 45712800

約数和(自身を除く): 25092872

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12697, 25394, 50788, 88879, 101576, 177758, 355516, 368213, 711032, 736426, 1472852, 2577491, 2945704, 5154982, 10309964, 20619928]

約数ペア:

[(1, 20619928), (2, 10309964), (4, 5154982), (7, 2945704), (8, 2577491), (14, 1472852), (28, 736426), (29, 711032), (56, 368213), (58, 355516), (116, 177758), (203, 101576), (232, 88879), (406, 50788), (812, 25394), (1624, 12697)]