19561906

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5657}}^1$

素因数の和:5698

約数の個数: 32

約数和(自身を含む): 38021760

約数和(自身を除く): 18459854

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 5657, 11314, 39599, 73541, 79198, 107483, 147082, 214966, 514787, 752381, 1029574, 1397279, 1504762, 2794558, 9780953, 19561906]

約数ペア:

[(1, 19561906), (2, 9780953), (7, 2794558), (13, 1504762), (14, 1397279), (19, 1029574), (26, 752381), (38, 514787), (91, 214966), (133, 147082), (182, 107483), (247, 79198), (266, 73541), (494, 39599), (1729, 11314), (3458, 5657)]