20969410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 47672064

約数和(自身を除く): 26702654

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 113, 154, 226, 241, 385, 482, 565, 770, 791, 1130, 1205, 1243, 1582, 1687, 2410, 2486, 2651, 3374, 3955, 5302, 6215, 7910, 8435, 8701, 12430, 13255, 16870, 17402, 18557, 26510, 27233, 37114, 43505, 54466, 87010, 92785, 136165, 185570, 190631, 272330, 299563, 381262, 599126, 953155, 1497815, 1906310, 2096941, 2995630, 4193882, 10484705, 20969410]

約数ペア:

[(1, 20969410), (2, 10484705), (5, 4193882), (7, 2995630), (10, 2096941), (11, 1906310), (14, 1497815), (22, 953155), (35, 599126), (55, 381262), (70, 299563), (77, 272330), (110, 190631), (113, 185570), (154, 136165), (226, 92785), (241, 87010), (385, 54466), (482, 43505), (565, 37114), (770, 27233), (791, 26510), (1130, 18557), (1205, 17402), (1243, 16870), (1582, 13255), (1687, 12430), (2410, 8701), (2486, 8435), (2651, 7910), (3374, 6215), (3955, 5302)]