20475939

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 33598080

約数和(自身を除く): 13122141

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 113, 187, 209, 289, 323, 339, 561, 627, 867, 969, 1243, 1921, 2147, 3179, 3553, 3729, 5491, 5763, 6441, 9537, 10659, 16473, 21131, 23617, 32657, 36499, 60401, 63393, 70851, 97971, 109497, 181203, 359227, 401489, 620483, 1077681, 1204467, 1861449, 6825313, 20475939]

約数ペア:

[(1, 20475939), (3, 6825313), (11, 1861449), (17, 1204467), (19, 1077681), (33, 620483), (51, 401489), (57, 359227), (113, 181203), (187, 109497), (209, 97971), (289, 70851), (323, 63393), (339, 60401), (561, 36499), (627, 32657), (867, 23617), (969, 21131), (1243, 16473), (1921, 10659), (2147, 9537), (3179, 6441), (3553, 5763), (3729, 5491)]