20506018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 35271936

約数和(自身を除く): 14765918

約数列:

[1, 2, 13, 23, 26, 46, 53, 106, 299, 598, 647, 689, 1219, 1294, 1378, 2438, 8411, 14881, 15847, 16822, 29762, 31694, 34291, 68582, 193453, 386906, 445783, 788693, 891566, 1577386, 10253009, 20506018]

約数ペア:

[(1, 20506018), (2, 10253009), (13, 1577386), (23, 891566), (26, 788693), (46, 445783), (53, 386906), (106, 193453), (299, 68582), (598, 34291), (647, 31694), (689, 29762), (1219, 16822), (1294, 15847), (1378, 14881), (2438, 8411)]