18639634

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 31752000

約数和(自身を除く): 13112366

約数列:

[1, 2, 13, 26, 29, 58, 59, 118, 377, 419, 754, 767, 838, 1534, 1711, 3422, 5447, 10894, 12151, 22243, 24302, 24721, 44486, 49442, 157963, 315926, 321373, 642746, 716909, 1433818, 9319817, 18639634]

約数ペア:

[(1, 18639634), (2, 9319817), (13, 1433818), (26, 716909), (29, 642746), (58, 321373), (59, 315926), (118, 157963), (377, 49442), (419, 44486), (754, 24721), (767, 24302), (838, 22243), (1534, 12151), (1711, 10894), (3422, 5447)]