21341390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10513}}^1$

素因数の和:10556

約数の個数: 32

約数和(自身を含む): 45420480

約数和(自身を除く): 24079090

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10513, 21026, 52565, 73591, 105130, 147182, 304877, 367955, 609754, 735910, 1524385, 2134139, 3048770, 4268278, 10670695, 21341390]

約数ペア:

[(1, 21341390), (2, 10670695), (5, 4268278), (7, 3048770), (10, 2134139), (14, 1524385), (29, 735910), (35, 609754), (58, 367955), (70, 304877), (145, 147182), (203, 105130), (290, 73591), (406, 52565), (1015, 21026), (2030, 10513)]