20970404

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 46061568

約数和(自身を除く): 25091164

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 53, 91, 106, 182, 212, 364, 371, 689, 742, 1087, 1378, 1484, 2174, 2756, 4348, 4823, 7609, 9646, 14131, 15218, 19292, 28262, 30436, 56524, 57611, 98917, 115222, 197834, 230444, 395668, 403277, 748943, 806554, 1497886, 1613108, 2995772, 5242601, 10485202, 20970404]

約数ペア:

[(1, 20970404), (2, 10485202), (4, 5242601), (7, 2995772), (13, 1613108), (14, 1497886), (26, 806554), (28, 748943), (52, 403277), (53, 395668), (91, 230444), (106, 197834), (182, 115222), (212, 98917), (364, 57611), (371, 56524), (689, 30436), (742, 28262), (1087, 19292), (1378, 15218), (1484, 14131), (2174, 9646), (2756, 7609), (4348, 4823)]