1998405

素因数分解:

$3^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 32

約数和(自身を含む): 3611520

約数和(自身を除く): 1613115

約数列:

[1, 3, 5, 9, 15, 27, 45, 113, 131, 135, 339, 393, 565, 655, 1017, 1179, 1695, 1965, 3051, 3537, 5085, 5895, 14803, 15255, 17685, 44409, 74015, 133227, 222045, 399681, 666135, 1998405]

約数ペア:

[(1, 1998405), (3, 666135), (5, 399681), (9, 222045), (15, 133227), (27, 74015), (45, 44409), (113, 17685), (131, 15255), (135, 14803), (339, 5895), (393, 5085), (565, 3537), (655, 3051), (1017, 1965), (1179, 1695)]