21350895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{829}}^1$

素因数の和:955

約数の個数: 32

約数和(自身を含む): 36573120

約数和(自身を除く): 15222225

約数列:

[1, 3, 5, 15, 17, 51, 85, 101, 255, 303, 505, 829, 1515, 1717, 2487, 4145, 5151, 8585, 12435, 14093, 25755, 42279, 70465, 83729, 211395, 251187, 418645, 1255935, 1423393, 4270179, 7116965, 21350895]

約数ペア:

[(1, 21350895), (3, 7116965), (5, 4270179), (15, 1423393), (17, 1255935), (51, 418645), (85, 251187), (101, 211395), (255, 83729), (303, 70465), (505, 42279), (829, 25755), (1515, 14093), (1717, 12435), (2487, 8585), (4145, 5151)]