20846709

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 35223552

約数和(自身を除く): 14376843

約数列:

[1, 3, 9, 13, 17, 39, 47, 51, 117, 141, 153, 221, 223, 423, 611, 663, 669, 799, 1833, 1989, 2007, 2397, 2899, 3791, 5499, 7191, 8697, 10387, 10481, 11373, 26091, 31161, 31443, 34119, 49283, 93483, 94329, 136253, 147849, 178177, 408759, 443547, 534531, 1226277, 1603593, 2316301, 6948903, 20846709]

約数ペア:

[(1, 20846709), (3, 6948903), (9, 2316301), (13, 1603593), (17, 1226277), (39, 534531), (47, 443547), (51, 408759), (117, 178177), (141, 147849), (153, 136253), (221, 94329), (223, 93483), (423, 49283), (611, 34119), (663, 31443), (669, 31161), (799, 26091), (1833, 11373), (1989, 10481), (2007, 10387), (2397, 8697), (2899, 7191), (3791, 5499)]