21576438

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:274

約数の個数: 96

約数和(自身を含む): 55560960

約数和(自身を除く): 33984522

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 23, 26, 38, 39, 46, 57, 69, 78, 114, 117, 138, 171, 207, 211, 234, 247, 299, 342, 414, 422, 437, 494, 598, 633, 741, 874, 897, 1266, 1311, 1482, 1794, 1899, 2223, 2622, 2691, 2743, 3798, 3933, 4009, 4446, 4853, 5382, 5486, 5681, 7866, 8018, 8229, 9706, 11362, 12027, 14559, 16458, 17043, 24054, 24687, 29118, 34086, 36081, 43677, 49374, 51129, 52117, 63089, 72162, 87354, 92207, 102258, 104234, 126178, 156351, 184414, 189267, 276621, 312702, 378534, 469053, 553242, 567801, 829863, 938106, 1135602, 1198691, 1659726, 2397382, 3596073, 7192146, 10788219, 21576438]

約数ペア:

[(1, 21576438), (2, 10788219), (3, 7192146), (6, 3596073), (9, 2397382), (13, 1659726), (18, 1198691), (19, 1135602), (23, 938106), (26, 829863), (38, 567801), (39, 553242), (46, 469053), (57, 378534), (69, 312702), (78, 276621), (114, 189267), (117, 184414), (138, 156351), (171, 126178), (207, 104234), (211, 102258), (234, 92207), (247, 87354), (299, 72162), (342, 63089), (414, 52117), (422, 51129), (437, 49374), (494, 43677), (598, 36081), (633, 34086), (741, 29118), (874, 24687), (897, 24054), (1266, 17043), (1311, 16458), (1482, 14559), (1794, 12027), (1899, 11362), (2223, 9706), (2622, 8229), (2691, 8018), (2743, 7866), (3798, 5681), (3933, 5486), (4009, 5382), (4446, 4853)]