21890043

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15107}}^1$

素因数の和:15143

約数の個数: 24

約数和(自身を含む): 37709568

約数和(自身を除く): 15819525

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 15107, 45321, 105749, 135963, 317247, 347461, 951741, 1042383, 2432227, 3127149, 7296681, 21890043]

約数ペア:

[(1, 21890043), (3, 7296681), (7, 3127149), (9, 2432227), (21, 1042383), (23, 951741), (63, 347461), (69, 317247), (161, 135963), (207, 105749), (483, 45321), (1449, 15107)]