20690355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1951}}^1$

素因数の和:2067

約数の個数: 32

約数和(自身を含む): 38227968

約数和(自身を除く): 17537613

約数列:

[1, 3, 5, 7, 15, 21, 35, 101, 105, 303, 505, 707, 1515, 1951, 2121, 3535, 5853, 9755, 10605, 13657, 29265, 40971, 68285, 197051, 204855, 591153, 985255, 1379357, 2955765, 4138071, 6896785, 20690355]

約数ペア:

[(1, 20690355), (3, 6896785), (5, 4138071), (7, 2955765), (15, 1379357), (21, 985255), (35, 591153), (101, 204855), (105, 197051), (303, 68285), (505, 40971), (707, 29265), (1515, 13657), (1951, 10605), (2121, 9755), (3535, 5853)]