20909910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{99571}}^1$

素因数の和:99588

約数の個数: 32

約数和(自身を含む): 57353472

約数和(自身を除く): 36443562

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 99571, 199142, 298713, 497855, 597426, 696997, 995710, 1393994, 1493565, 2090991, 2987130, 3484985, 4181982, 6969970, 10454955, 20909910]

約数ペア:

[(1, 20909910), (2, 10454955), (3, 6969970), (5, 4181982), (6, 3484985), (7, 2987130), (10, 2090991), (14, 1493565), (15, 1393994), (21, 995710), (30, 696997), (35, 597426), (42, 497855), (70, 298713), (105, 199142), (210, 99571)]