19745908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3191}}^1$

素因数の和:3232

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 25299596

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3191, 6188, 6382, 12764, 22337, 41483, 44674, 54247, 82966, 89348, 108494, 165932, 216988, 290381, 379729, 580762, 705211, 759458, 1161524, 1410422, 1518916, 2820844, 4936477, 9872954, 19745908]

約数ペア:

[(1, 19745908), (2, 9872954), (4, 4936477), (7, 2820844), (13, 1518916), (14, 1410422), (17, 1161524), (26, 759458), (28, 705211), (34, 580762), (52, 379729), (68, 290381), (91, 216988), (119, 165932), (182, 108494), (221, 89348), (238, 82966), (364, 54247), (442, 44674), (476, 41483), (884, 22337), (1547, 12764), (3094, 6382), (3191, 6188)]