20797868

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3361}}^1$

素因数の和:3402

約数の個数: 48

約数和(自身を含む): 47444544

約数和(自身を除く): 26646676

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, 3361, 6188, 6722, 13444, 23527, 43693, 47054, 57137, 87386, 94108, 114274, 174772, 228548, 305851, 399959, 611702, 742781, 799918, 1223404, 1485562, 1599836, 2971124, 5199467, 10398934, 20797868]

約数ペア:

[(1, 20797868), (2, 10398934), (4, 5199467), (7, 2971124), (13, 1599836), (14, 1485562), (17, 1223404), (26, 799918), (28, 742781), (34, 611702), (52, 399959), (68, 305851), (91, 228548), (119, 174772), (182, 114274), (221, 94108), (238, 87386), (364, 57137), (442, 47054), (476, 43693), (884, 23527), (1547, 13444), (3094, 6722), (3361, 6188)]