21653019

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1459}}^1$

素因数の和:1579

約数の個数: 24

約数和(自身を含む): 33480720

約数和(自身を除く): 11827701

約数列:

[1, 3, 9, 17, 51, 97, 153, 291, 873, 1459, 1649, 4377, 4947, 13131, 14841, 24803, 74409, 141523, 223227, 424569, 1273707, 2405891, 7217673, 21653019]

約数ペア:

[(1, 21653019), (3, 7217673), (9, 2405891), (17, 1273707), (51, 424569), (97, 223227), (153, 141523), (291, 74409), (873, 24803), (1459, 14841), (1649, 13131), (4377, 4947)]