21459195

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3877}}^1$

素因数の和:3932

約数の個数: 32

約数和(自身を含む): 39090240

約数和(自身を除く): 17631045

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 3877, 5535, 11631, 19385, 34893, 58155, 104679, 158957, 174465, 476871, 523395, 794785, 1430613, 2384355, 4291839, 7153065, 21459195]

約数ペア:

[(1, 21459195), (3, 7153065), (5, 4291839), (9, 2384355), (15, 1430613), (27, 794785), (41, 523395), (45, 476871), (123, 174465), (135, 158957), (205, 104679), (369, 58155), (615, 34893), (1107, 19385), (1845, 11631), (3877, 5535)]