21702070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1201}}^1$

素因数の和:1360

約数の個数: 32

約数和(自身を含む): 42406560

約数和(自身を除く): 20704490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1201, 1390, 1807, 2402, 3614, 6005, 9035, 12010, 15613, 18070, 31226, 78065, 156130, 166939, 333878, 834695, 1669390, 2170207, 4340414, 10851035, 21702070]

約数ペア:

[(1, 21702070), (2, 10851035), (5, 4340414), (10, 2170207), (13, 1669390), (26, 834695), (65, 333878), (130, 166939), (139, 156130), (278, 78065), (695, 31226), (1201, 18070), (1390, 15613), (1807, 12010), (2402, 9035), (3614, 6005)]