20131121498

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1\times {\mathrm{2711}}^1$

素因数の和:3358

約数の個数: 32

約数和(自身を含む): 31084466688

約数和(自身を除く): 10953345190

約数列:

[1, 2, 47, 94, 197, 394, 401, 802, 2711, 5422, 9259, 18518, 18847, 37694, 78997, 127417, 157994, 254834, 534067, 1068134, 1087111, 2174222, 3712859, 7425718, 25101149, 50202298, 51094217, 102188434, 214160867, 428321734, 10065560749, 20131121498]

約数ペア:

[(1, 20131121498), (2, 10065560749), (47, 428321734), (94, 214160867), (197, 102188434), (394, 51094217), (401, 50202298), (802, 25101149), (2711, 7425718), (5422, 3712859), (9259, 2174222), (18518, 1087111), (18847, 1068134), (37694, 534067), (78997, 254834), (127417, 157994)]