18971372

素因数分解:

$2^2\times 7^1\times {\mathrm{307}}^1\times {\mathrm{2207}}^1$

素因数の和:2525

約数の個数: 24

約数和(自身を含む): 38083584

約数和(自身を除く): 19112212

約数列:

[1, 2, 4, 7, 14, 28, 307, 614, 1228, 2149, 2207, 4298, 4414, 8596, 8828, 15449, 30898, 61796, 677549, 1355098, 2710196, 4742843, 9485686, 18971372]

約数ペア:

[(1, 18971372), (2, 9485686), (4, 4742843), (7, 2710196), (14, 1355098), (28, 677549), (307, 61796), (614, 30898), (1228, 15449), (2149, 8828), (2207, 8596), (4298, 4414)]