209218959

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{2129}}^1$

素因数の和:2375

約数の個数: 24

約数和(自身を含む): 309020400

約数和(自身を除く): 99801441

約数列:

[1, 3, 9, 61, 179, 183, 537, 549, 1611, 2129, 6387, 10919, 19161, 32757, 98271, 129869, 381091, 389607, 1143273, 1168821, 3429819, 23246551, 69739653, 209218959]

約数ペア:

[(1, 209218959), (3, 69739653), (9, 23246551), (61, 3429819), (179, 1168821), (183, 1143273), (537, 389607), (549, 381091), (1611, 129869), (2129, 98271), (6387, 32757), (10919, 19161)]