21385530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1871}}^1$

素因数の和:2011

約数の個数: 48

約数和(自身を含む): 56070144

約数和(自身を除く): 34684614

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1871, 1905, 2286, 3742, 3810, 5613, 5715, 9355, 11226, 11430, 16839, 18710, 28065, 33678, 56130, 84195, 168390, 237617, 475234, 712851, 1188085, 1425702, 2138553, 2376170, 3564255, 4277106, 7128510, 10692765, 21385530]

約数ペア:

[(1, 21385530), (2, 10692765), (3, 7128510), (5, 4277106), (6, 3564255), (9, 2376170), (10, 2138553), (15, 1425702), (18, 1188085), (30, 712851), (45, 475234), (90, 237617), (127, 168390), (254, 84195), (381, 56130), (635, 33678), (762, 28065), (1143, 18710), (1270, 16839), (1871, 11430), (1905, 11226), (2286, 9355), (3742, 5715), (3810, 5613)]