2021329869

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^2\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 3192967008

約数和(自身を除く): 1171637139

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 131, 221, 289, 393, 481, 629, 663, 867, 1369, 1443, 1703, 1887, 2227, 3757, 4107, 4847, 5109, 6681, 8177, 10693, 11271, 14541, 17797, 23273, 24531, 28951, 32079, 37859, 53391, 63011, 69819, 82399, 86853, 113577, 139009, 179339, 189033, 247197, 302549, 395641, 417027, 492167, 538017, 907647, 1071187, 1186923, 1400783, 1476501, 2331407, 3048763, 3213561, 4202349, 5143333, 6994221, 9146289, 15429999, 18210179, 39633919, 51828971, 54630537, 118901757, 155486913, 673776623, 2021329869]

約数ペア:

[(1, 2021329869), (3, 673776623), (13, 155486913), (17, 118901757), (37, 54630537), (39, 51828971), (51, 39633919), (111, 18210179), (131, 15429999), (221, 9146289), (289, 6994221), (393, 5143333), (481, 4202349), (629, 3213561), (663, 3048763), (867, 2331407), (1369, 1476501), (1443, 1400783), (1703, 1186923), (1887, 1071187), (2227, 907647), (3757, 538017), (4107, 492167), (4847, 417027), (5109, 395641), (6681, 302549), (8177, 247197), (10693, 189033), (11271, 179339), (14541, 139009), (17797, 113577), (23273, 86853), (24531, 82399), (28951, 69819), (32079, 63011), (37859, 53391)]