405778893

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1\times {\mathrm{607}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 595295232

約数和(自身を除く): 189516339

約数列:

[1, 3, 13, 39, 61, 183, 281, 607, 793, 843, 1821, 2379, 3653, 7891, 10959, 17141, 23673, 37027, 51423, 111081, 170567, 222833, 481351, 511701, 668499, 1444053, 2217371, 6652113, 10404587, 31213761, 135259631, 405778893]

約数ペア:

[(1, 405778893), (3, 135259631), (13, 31213761), (39, 10404587), (61, 6652113), (183, 2217371), (281, 1444053), (607, 668499), (793, 511701), (843, 481351), (1821, 222833), (2379, 170567), (3653, 111081), (7891, 51423), (10959, 37027), (17141, 23673)]