405980211

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{15331}}^1$

素因数の和:15451

約数の個数: 32

約数和(自身を含む): 673136128

約数和(自身を除く): 267155917

約数列:

[1, 3, 7, 13, 21, 39, 91, 97, 273, 291, 679, 1261, 2037, 3783, 8827, 15331, 26481, 45993, 107317, 199303, 321951, 597909, 1395121, 1487107, 4185363, 4461321, 10409749, 19332391, 31229247, 57997173, 135326737, 405980211]

約数ペア:

[(1, 405980211), (3, 135326737), (7, 57997173), (13, 31229247), (21, 19332391), (39, 10409749), (91, 4461321), (97, 4185363), (273, 1487107), (291, 1395121), (679, 597909), (1261, 321951), (2037, 199303), (3783, 107317), (8827, 45993), (15331, 26481)]