21886640

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4637}}^1$

素因数の和:4709

約数の個数: 40

約数和(自身を含む): 51760080

約数和(自身を除く): 29873440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4637, 4720, 9274, 18548, 23185, 37096, 46370, 74192, 92740, 185480, 273583, 370960, 547166, 1094332, 1367915, 2188664, 2735830, 4377328, 5471660, 10943320, 21886640]

約数ペア:

[(1, 21886640), (2, 10943320), (4, 5471660), (5, 4377328), (8, 2735830), (10, 2188664), (16, 1367915), (20, 1094332), (40, 547166), (59, 370960), (80, 273583), (118, 185480), (236, 92740), (295, 74192), (472, 46370), (590, 37096), (944, 23185), (1180, 18548), (2360, 9274), (4637, 4720)]