253376991

素因数分解:

$3^4\times 7^2\times {\mathrm{63839}}^1$

素因数の和:63865

約数の個数: 30

約数和(自身を含む): 440304480

約数和(自身を除く): 186927489

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 63839, 191517, 446873, 574551, 1340619, 1723653, 3128111, 4021857, 5170959, 9384333, 12065571, 28152999, 36196713, 84458997, 253376991]

約数ペア:

[(1, 253376991), (3, 84458997), (7, 36196713), (9, 28152999), (21, 12065571), (27, 9384333), (49, 5170959), (63, 4021857), (81, 3128111), (147, 1723653), (189, 1340619), (441, 574551), (567, 446873), (1323, 191517), (3969, 63839)]