20017695

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 32969664

約数和(自身を除く): 12951969

約数列:

[1, 3, 5, 15, 73, 101, 181, 219, 303, 365, 505, 543, 905, 1095, 1515, 2715, 7373, 13213, 18281, 22119, 36865, 39639, 54843, 66065, 91405, 110595, 198195, 274215, 1334513, 4003539, 6672565, 20017695]

約数ペア:

[(1, 20017695), (3, 6672565), (5, 4003539), (15, 1334513), (73, 274215), (101, 198195), (181, 110595), (219, 91405), (303, 66065), (365, 54843), (505, 39639), (543, 36865), (905, 22119), (1095, 18281), (1515, 13213), (2715, 7373)]