21045678

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 22085202

約数列:

[1, 2, 3, 6, 71, 127, 142, 213, 254, 381, 389, 426, 762, 778, 1167, 2334, 9017, 18034, 27051, 27619, 49403, 54102, 55238, 82857, 98806, 148209, 165714, 296418, 3507613, 7015226, 10522839, 21045678]

約数ペア:

[(1, 21045678), (2, 10522839), (3, 7015226), (6, 3507613), (71, 296418), (127, 165714), (142, 148209), (213, 98806), (254, 82857), (381, 55238), (389, 54102), (426, 49403), (762, 27619), (778, 27051), (1167, 18034), (2334, 9017)]