21778071

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1151}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 14053737

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 901, 1113, 1151, 2703, 3453, 6307, 8057, 18921, 19567, 24171, 58701, 61003, 136969, 183009, 410907, 427021, 1037051, 1281063, 3111153, 7259357, 21778071]

約数ペア:

[(1, 21778071), (3, 7259357), (7, 3111153), (17, 1281063), (21, 1037051), (51, 427021), (53, 410907), (119, 183009), (159, 136969), (357, 61003), (371, 58701), (901, 24171), (1113, 19567), (1151, 18921), (2703, 8057), (3453, 6307)]