20764986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 28655814

約数列:

[1, 2, 3, 6, 11, 19, 22, 29, 33, 38, 57, 58, 66, 87, 114, 174, 209, 319, 418, 551, 571, 627, 638, 957, 1102, 1142, 1254, 1653, 1713, 1914, 3306, 3426, 6061, 6281, 10849, 12122, 12562, 16559, 18183, 18843, 21698, 32547, 33118, 36366, 37686, 49677, 65094, 99354, 119339, 182149, 238678, 314621, 358017, 364298, 546447, 629242, 716034, 943863, 1092894, 1887726, 3460831, 6921662, 10382493, 20764986]

約数ペア:

[(1, 20764986), (2, 10382493), (3, 6921662), (6, 3460831), (11, 1887726), (19, 1092894), (22, 943863), (29, 716034), (33, 629242), (38, 546447), (57, 364298), (58, 358017), (66, 314621), (87, 238678), (114, 182149), (174, 119339), (209, 99354), (319, 65094), (418, 49677), (551, 37686), (571, 36366), (627, 33118), (638, 32547), (957, 21698), (1102, 18843), (1142, 18183), (1254, 16559), (1653, 12562), (1713, 12122), (1914, 10849), (3306, 6281), (3426, 6061)]