21385250

素因数分解:

$2^1\times 5^3\times {\mathrm{113}}^1\times {\mathrm{757}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 40440816

約数和(自身を除く): 19055566

約数列:

[1, 2, 5, 10, 25, 50, 113, 125, 226, 250, 565, 757, 1130, 1514, 2825, 3785, 5650, 7570, 14125, 18925, 28250, 37850, 85541, 94625, 171082, 189250, 427705, 855410, 2138525, 4277050, 10692625, 21385250]

約数ペア:

[(1, 21385250), (2, 10692625), (5, 4277050), (10, 2138525), (25, 855410), (50, 427705), (113, 189250), (125, 171082), (226, 94625), (250, 85541), (565, 37850), (757, 28250), (1130, 18925), (1514, 14125), (2825, 7570), (3785, 5650)]