21103700

素因数分解:

$2^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{883}}^1$

素因数の和:1136

約数の個数: 36

約数和(自身を含む): 46038720

約数和(自身を除く): 24935020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 239, 478, 883, 956, 1195, 1766, 2390, 3532, 4415, 4780, 5975, 8830, 11950, 17660, 22075, 23900, 44150, 88300, 211037, 422074, 844148, 1055185, 2110370, 4220740, 5275925, 10551850, 21103700]

約数ペア:

[(1, 21103700), (2, 10551850), (4, 5275925), (5, 4220740), (10, 2110370), (20, 1055185), (25, 844148), (50, 422074), (100, 211037), (239, 88300), (478, 44150), (883, 23900), (956, 22075), (1195, 17660), (1766, 11950), (2390, 8830), (3532, 5975), (4415, 4780)]