18166715

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 25903104

約数和(自身を除く): 7736389

約数列:

[1, 5, 7, 35, 61, 67, 127, 305, 335, 427, 469, 635, 889, 2135, 2345, 4087, 4445, 7747, 8509, 20435, 28609, 38735, 42545, 54229, 59563, 143045, 271145, 297815, 519049, 2595245, 3633343, 18166715]

約数ペア:

[(1, 18166715), (5, 3633343), (7, 2595245), (35, 519049), (61, 297815), (67, 271145), (127, 143045), (305, 59563), (335, 54229), (427, 42545), (469, 38735), (635, 28609), (889, 20435), (2135, 8509), (2345, 7747), (4087, 4445)]