28268559

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 47044608

約数和(自身を除く): 18776049

約数列:

[1, 3, 9, 11, 31, 33, 61, 93, 99, 151, 183, 279, 341, 453, 549, 671, 1023, 1359, 1661, 1891, 2013, 3069, 4681, 4983, 5673, 6039, 9211, 14043, 14949, 17019, 20801, 27633, 42129, 51491, 62403, 82899, 101321, 154473, 187209, 285541, 303963, 463419, 856623, 911889, 2569869, 3140951, 9422853, 28268559]

約数ペア:

[(1, 28268559), (3, 9422853), (9, 3140951), (11, 2569869), (31, 911889), (33, 856623), (61, 463419), (93, 303963), (99, 285541), (151, 187209), (183, 154473), (279, 101321), (341, 82899), (453, 62403), (549, 51491), (671, 42129), (1023, 27633), (1359, 20801), (1661, 17019), (1891, 14949), (2013, 14043), (3069, 9211), (4681, 6039), (4983, 5673)]