20968612

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1831}}^1$

素因数の和:2251

約数の個数: 24

約数和(自身を含む): 42062720

約数和(自身を除く): 21094108

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 1831, 2863, 3662, 5726, 7324, 11452, 12817, 25634, 51268, 748879, 1497758, 2995516, 5242153, 10484306, 20968612]

約数ペア:

[(1, 20968612), (2, 10484306), (4, 5242153), (7, 2995516), (14, 1497758), (28, 748879), (409, 51268), (818, 25634), (1636, 12817), (1831, 11452), (2863, 7324), (3662, 5726)]