19734715

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3943}}^1$

素因数の和:3979

約数の個数: 32

約数和(自身を含む): 31804416

約数和(自身を除く): 12069701

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 3943, 5005, 19715, 27601, 43373, 51259, 138005, 216865, 256295, 303611, 358813, 563849, 1518055, 1794065, 2819245, 3946943, 19734715]

約数ペア:

[(1, 19734715), (5, 3946943), (7, 2819245), (11, 1794065), (13, 1518055), (35, 563849), (55, 358813), (65, 303611), (77, 256295), (91, 216865), (143, 138005), (385, 51259), (455, 43373), (715, 27601), (1001, 19715), (3943, 5005)]