21093640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17011}}^1$

素因数の和:17053

約数の個数: 32

約数和(自身を含む): 48994560

約数和(自身を除く): 27900920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 17011, 34022, 68044, 85055, 136088, 170110, 340220, 527341, 680440, 1054682, 2109364, 2636705, 4218728, 5273410, 10546820, 21093640]

約数ペア:

[(1, 21093640), (2, 10546820), (4, 5273410), (5, 4218728), (8, 2636705), (10, 2109364), (20, 1054682), (31, 680440), (40, 527341), (62, 340220), (124, 170110), (155, 136088), (248, 85055), (310, 68044), (620, 34022), (1240, 17011)]