20601786

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 42208128

約数和(自身を除く): 21606342

約数列:

[1, 2, 3, 6, 71, 137, 142, 213, 274, 353, 411, 426, 706, 822, 1059, 2118, 9727, 19454, 25063, 29181, 48361, 50126, 58362, 75189, 96722, 145083, 150378, 290166, 3433631, 6867262, 10300893, 20601786]

約数ペア:

[(1, 20601786), (2, 10300893), (3, 6867262), (6, 3433631), (71, 290166), (137, 150378), (142, 145083), (213, 96722), (274, 75189), (353, 58362), (411, 50126), (426, 48361), (706, 29181), (822, 25063), (1059, 19454), (2118, 9727)]