20879404

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3019}}^1$

素因数の和:3062

約数の個数: 48

約数和(自身を含む): 47353600

約数和(自身を除く): 26474196

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 3019, 3458, 6038, 6916, 12076, 21133, 39247, 42266, 57361, 78494, 84532, 114722, 156988, 229444, 274729, 401527, 549458, 745693, 803054, 1098916, 1491386, 1606108, 2982772, 5219851, 10439702, 20879404]

約数ペア:

[(1, 20879404), (2, 10439702), (4, 5219851), (7, 2982772), (13, 1606108), (14, 1491386), (19, 1098916), (26, 803054), (28, 745693), (38, 549458), (52, 401527), (76, 274729), (91, 229444), (133, 156988), (182, 114722), (247, 84532), (266, 78494), (364, 57361), (494, 42266), (532, 39247), (988, 21133), (1729, 12076), (3019, 6916), (3458, 6038)]