20701328

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18223}}^1$

素因数の和:18302

約数の個数: 20

約数和(自身を含む): 40675968

約数和(自身を除く): 19974640

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18223, 36446, 72892, 145784, 291568, 1293833, 2587666, 5175332, 10350664, 20701328]

約数ペア:

[(1, 20701328), (2, 10350664), (4, 5175332), (8, 2587666), (16, 1293833), (71, 291568), (142, 145784), (284, 72892), (568, 36446), (1136, 18223)]