28019313

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 49211136

約数和(自身を除く): 21191823

約数列:

[1, 3, 7, 9, 21, 23, 61, 63, 69, 161, 183, 207, 317, 427, 483, 549, 951, 1281, 1403, 1449, 2219, 2853, 3843, 4209, 6657, 7291, 9821, 12627, 19337, 19971, 21873, 29463, 51037, 58011, 65619, 88389, 135359, 153111, 174033, 406077, 444751, 459333, 1218231, 1334253, 3113257, 4002759, 9339771, 28019313]

約数ペア:

[(1, 28019313), (3, 9339771), (7, 4002759), (9, 3113257), (21, 1334253), (23, 1218231), (61, 459333), (63, 444751), (69, 406077), (161, 174033), (183, 153111), (207, 135359), (317, 88389), (427, 65619), (483, 58011), (549, 51037), (951, 29463), (1281, 21873), (1403, 19971), (1449, 19337), (2219, 12627), (2853, 9821), (3843, 7291), (4209, 6657)]