20665968

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10501}}^1$

素因数の和:10553

約数の個数: 40

約数和(自身を含む): 54694416

約数和(自身を除く): 34028448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10501, 21002, 31503, 42004, 63006, 84008, 126012, 168016, 252024, 430541, 504048, 861082, 1291623, 1722164, 2583246, 3444328, 5166492, 6888656, 10332984, 20665968]

約数ペア:

[(1, 20665968), (2, 10332984), (3, 6888656), (4, 5166492), (6, 3444328), (8, 2583246), (12, 1722164), (16, 1291623), (24, 861082), (41, 504048), (48, 430541), (82, 252024), (123, 168016), (164, 126012), (246, 84008), (328, 63006), (492, 42004), (656, 31503), (984, 21002), (1968, 10501)]