21010878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{577}}^1$

素因数の和:626

約数の個数: 72

約数和(自身を含む): 55363152

約数和(自身を除く): 34352274

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 289, 306, 357, 577, 578, 714, 867, 1071, 1154, 1731, 1734, 2023, 2142, 2601, 3462, 4039, 4046, 5193, 5202, 6069, 8078, 9809, 10386, 12117, 12138, 18207, 19618, 24234, 29427, 36351, 36414, 58854, 68663, 72702, 88281, 137326, 166753, 176562, 205989, 333506, 411978, 500259, 617967, 1000518, 1167271, 1235934, 1500777, 2334542, 3001554, 3501813, 7003626, 10505439, 21010878]

約数ペア:

[(1, 21010878), (2, 10505439), (3, 7003626), (6, 3501813), (7, 3001554), (9, 2334542), (14, 1500777), (17, 1235934), (18, 1167271), (21, 1000518), (34, 617967), (42, 500259), (51, 411978), (63, 333506), (102, 205989), (119, 176562), (126, 166753), (153, 137326), (238, 88281), (289, 72702), (306, 68663), (357, 58854), (577, 36414), (578, 36351), (714, 29427), (867, 24234), (1071, 19618), (1154, 18207), (1731, 12138), (1734, 12117), (2023, 10386), (2142, 9809), (2601, 8078), (3462, 6069), (4039, 5202), (4046, 5193)]