18460215

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 34538400

約数和(自身を除く): 16078185

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 59, 85, 153, 177, 255, 295, 409, 531, 765, 885, 1003, 1227, 2045, 2655, 3009, 3681, 5015, 6135, 6953, 9027, 15045, 18405, 20859, 24131, 34765, 45135, 62577, 72393, 104295, 120655, 217179, 312885, 361965, 410227, 1085895, 1230681, 2051135, 3692043, 6153405, 18460215]

約数ペア:

[(1, 18460215), (3, 6153405), (5, 3692043), (9, 2051135), (15, 1230681), (17, 1085895), (45, 410227), (51, 361965), (59, 312885), (85, 217179), (153, 120655), (177, 104295), (255, 72393), (295, 62577), (409, 45135), (531, 34765), (765, 24131), (885, 20859), (1003, 18405), (1227, 15045), (2045, 9027), (2655, 6953), (3009, 6135), (3681, 5015)]