21471688

素因数分解:

$2^3\times 7^1\times {\mathrm{457}}^1\times {\mathrm{839}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 46166400

約数和(自身を除く): 24694712

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 457, 839, 914, 1678, 1828, 3199, 3356, 3656, 5873, 6398, 6712, 11746, 12796, 23492, 25592, 46984, 383423, 766846, 1533692, 2683961, 3067384, 5367922, 10735844, 21471688]

約数ペア:

[(1, 21471688), (2, 10735844), (4, 5367922), (7, 3067384), (8, 2683961), (14, 1533692), (28, 766846), (56, 383423), (457, 46984), (839, 25592), (914, 23492), (1678, 12796), (1828, 11746), (3199, 6712), (3356, 6398), (3656, 5873)]