21312170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{619}}^1$

素因数の和:950

約数の個数: 32

約数和(自身を含む): 42050880

約数和(自身を除く): 20738710

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 313, 619, 626, 1238, 1565, 3095, 3130, 3443, 6190, 6809, 6886, 13618, 17215, 34045, 34430, 68090, 193747, 387494, 968735, 1937470, 2131217, 4262434, 10656085, 21312170]

約数ペア:

[(1, 21312170), (2, 10656085), (5, 4262434), (10, 2131217), (11, 1937470), (22, 968735), (55, 387494), (110, 193747), (313, 68090), (619, 34430), (626, 34045), (1238, 17215), (1565, 13618), (3095, 6886), (3130, 6809), (3443, 6190)]