21591270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1889}}^1$

素因数の和:2029

約数の個数: 48

約数和(自身を含む): 56609280

約数和(自身を除く): 35018010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1889, 1905, 2286, 3778, 3810, 5667, 5715, 9445, 11334, 11430, 17001, 18890, 28335, 34002, 56670, 85005, 170010, 239903, 479806, 719709, 1199515, 1439418, 2159127, 2399030, 3598545, 4318254, 7197090, 10795635, 21591270]

約数ペア:

[(1, 21591270), (2, 10795635), (3, 7197090), (5, 4318254), (6, 3598545), (9, 2399030), (10, 2159127), (15, 1439418), (18, 1199515), (30, 719709), (45, 479806), (90, 239903), (127, 170010), (254, 85005), (381, 56670), (635, 34002), (762, 28335), (1143, 18890), (1270, 17001), (1889, 11430), (1905, 11334), (2286, 9445), (3778, 5715), (3810, 5667)]