20008872

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21377}}^1$

素因数の和:21402

約数の個数: 48

約数和(自身を含む): 58361940

約数和(自身を除く): 38353068

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21377, 42754, 64131, 85508, 128262, 171016, 192393, 256524, 277901, 384786, 513048, 555802, 769572, 833703, 1111604, 1539144, 1667406, 2223208, 2501109, 3334812, 5002218, 6669624, 10004436, 20008872]

約数ペア:

[(1, 20008872), (2, 10004436), (3, 6669624), (4, 5002218), (6, 3334812), (8, 2501109), (9, 2223208), (12, 1667406), (13, 1539144), (18, 1111604), (24, 833703), (26, 769572), (36, 555802), (39, 513048), (52, 384786), (72, 277901), (78, 256524), (104, 192393), (117, 171016), (156, 128262), (234, 85508), (312, 64131), (468, 42754), (936, 21377)]