20761775489

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1297}}^1\times {\mathrm{3319}}^1$

素因数の和:4689

約数の個数: 32

約数和(自身を含む): 26063009280

約数和(自身を除く): 5301233791

約数列:

[1, 7, 13, 53, 91, 371, 689, 1297, 3319, 4823, 9079, 16861, 23233, 43147, 68741, 118027, 175907, 302029, 481187, 893633, 1231349, 2286791, 4304743, 6255431, 16007537, 30133201, 55961659, 228151379, 391731613, 1597059653, 2965967927, 20761775489]

約数ペア:

[(1, 20761775489), (7, 2965967927), (13, 1597059653), (53, 391731613), (91, 228151379), (371, 55961659), (689, 30133201), (1297, 16007537), (3319, 6255431), (4823, 4304743), (9079, 2286791), (16861, 1231349), (23233, 893633), (43147, 481187), (68741, 302029), (118027, 175907)]