21797010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1907}}^1$

素因数の和:2047

約数の個数: 48

約数和(自身を含む): 57148416

約数和(自身を除く): 35351406

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1905, 1907, 2286, 3810, 3814, 5715, 5721, 9535, 11430, 11442, 17163, 19070, 28605, 34326, 57210, 85815, 171630, 242189, 484378, 726567, 1210945, 1453134, 2179701, 2421890, 3632835, 4359402, 7265670, 10898505, 21797010]

約数ペア:

[(1, 21797010), (2, 10898505), (3, 7265670), (5, 4359402), (6, 3632835), (9, 2421890), (10, 2179701), (15, 1453134), (18, 1210945), (30, 726567), (45, 484378), (90, 242189), (127, 171630), (254, 85815), (381, 57210), (635, 34326), (762, 28605), (1143, 19070), (1270, 17163), (1905, 11442), (1907, 11430), (2286, 9535), (3810, 5721), (3814, 5715)]