21485541

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 35951616

約数和(自身を除く): 14466075

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 281, 331, 843, 993, 1967, 2317, 3091, 3641, 5901, 6951, 9273, 10923, 21637, 25487, 64911, 76461, 93011, 279033, 651077, 1023121, 1953231, 3069363, 7161847, 21485541]

約数ペア:

[(1, 21485541), (3, 7161847), (7, 3069363), (11, 1953231), (21, 1023121), (33, 651077), (77, 279033), (231, 93011), (281, 76461), (331, 64911), (843, 25487), (993, 21637), (1967, 10923), (2317, 9273), (3091, 6951), (3641, 5901)]