19968370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5107}}^1$

素因数の和:5154

約数の個数: 32

約数和(自身を含む): 39719808

約数和(自身を除く): 19751438

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 5107, 10214, 25535, 51070, 86819, 117461, 173638, 234922, 434095, 587305, 868190, 1174610, 1996837, 3993674, 9984185, 19968370]

約数ペア:

[(1, 19968370), (2, 9984185), (5, 3993674), (10, 1996837), (17, 1174610), (23, 868190), (34, 587305), (46, 434095), (85, 234922), (115, 173638), (170, 117461), (230, 86819), (391, 51070), (782, 25535), (1955, 10214), (3910, 5107)]