21145956

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10427}}^1$

素因数の和:10460

約数の個数: 36

約数和(自身を含む): 53433072

約数和(自身を除く): 32287116

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10427, 20854, 31281, 41708, 62562, 125124, 135551, 271102, 406653, 542204, 813306, 1626612, 1762163, 3524326, 5286489, 7048652, 10572978, 21145956]

約数ペア:

[(1, 21145956), (2, 10572978), (3, 7048652), (4, 5286489), (6, 3524326), (12, 1762163), (13, 1626612), (26, 813306), (39, 542204), (52, 406653), (78, 271102), (156, 135551), (169, 125124), (338, 62562), (507, 41708), (676, 31281), (1014, 20854), (2028, 10427)]