21530002

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1063}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 37537920

約数和(自身を除く): 16007918

約数列:

[1, 2, 13, 19, 26, 38, 41, 82, 247, 494, 533, 779, 1063, 1066, 1558, 2126, 10127, 13819, 20197, 20254, 27638, 40394, 43583, 87166, 262561, 525122, 566579, 828077, 1133158, 1656154, 10765001, 21530002]

約数ペア:

[(1, 21530002), (2, 10765001), (13, 1656154), (19, 1133158), (26, 828077), (38, 566579), (41, 525122), (82, 262561), (247, 87166), (494, 43583), (533, 40394), (779, 27638), (1063, 20254), (1066, 20197), (1558, 13819), (2126, 10127)]