388479321

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1181}}^1$

素因数の和:1355

約数の個数: 40

約数和(自身を含む): 604124928

約数和(自身を除く): 215645607

約数列:

[1, 3, 9, 27, 31, 81, 93, 131, 279, 393, 837, 1179, 1181, 2511, 3537, 3543, 4061, 10611, 10629, 12183, 31887, 36549, 36611, 95661, 109647, 109833, 154711, 328941, 329499, 464133, 988497, 1392399, 2965491, 4177197, 4796041, 12531591, 14388123, 43164369, 129493107, 388479321]

約数ペア:

[(1, 388479321), (3, 129493107), (9, 43164369), (27, 14388123), (31, 12531591), (81, 4796041), (93, 4177197), (131, 2965491), (279, 1392399), (393, 988497), (837, 464133), (1179, 329499), (1181, 328941), (2511, 154711), (3537, 109833), (3543, 109647), (4061, 95661), (10611, 36611), (10629, 36549), (12183, 31887)]