71978697

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{9601}}^1$

素因数の和:9638

約数の個数: 36

約数和(自身を含む): 128071476

約数和(自身を除く): 56092779

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 7497, 9601, 28803, 67207, 86409, 163217, 201621, 470449, 489651, 604863, 1142519, 1411347, 1468953, 3427557, 4234041, 7997633, 10282671, 23992899, 71978697]

約数ペア:

[(1, 71978697), (3, 23992899), (7, 10282671), (9, 7997633), (17, 4234041), (21, 3427557), (49, 1468953), (51, 1411347), (63, 1142519), (119, 604863), (147, 489651), (153, 470449), (357, 201621), (441, 163217), (833, 86409), (1071, 67207), (2499, 28803), (7497, 9601)]