21831130

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{70423}}^1$

素因数の和:70461

約数の個数: 16

約数和(自身を含む): 40564224

約数和(自身を除く): 18733094

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 70423, 140846, 352115, 704230, 2183113, 4366226, 10915565, 21831130]

約数ペア:

[(1, 21831130), (2, 10915565), (5, 4366226), (10, 2183113), (31, 704230), (62, 352115), (155, 140846), (310, 70423)]