21531680

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5851}}^1$

素因数の和:5889

約数の個数: 48

約数和(自身を含む): 53089344

約数和(自身を除く): 31557664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5851, 11702, 23404, 29255, 46808, 58510, 93616, 117020, 134573, 187232, 234040, 269146, 468080, 538292, 672865, 936160, 1076584, 1345730, 2153168, 2691460, 4306336, 5382920, 10765840, 21531680]

約数ペア:

[(1, 21531680), (2, 10765840), (4, 5382920), (5, 4306336), (8, 2691460), (10, 2153168), (16, 1345730), (20, 1076584), (23, 936160), (32, 672865), (40, 538292), (46, 468080), (80, 269146), (92, 234040), (115, 187232), (160, 134573), (184, 117020), (230, 93616), (368, 58510), (460, 46808), (736, 29255), (920, 23404), (1840, 11702), (3680, 5851)]