20781617668

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1181}}^1\times {\mathrm{1583}}^1$

素因数の和:3172

約数の個数: 48

約数和(自身を含む): 41729554944

約数和(自身を除く): 20947937276

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1181, 1583, 1588, 2362, 2779, 3166, 4724, 5558, 6332, 8267, 11081, 11116, 16534, 22162, 33068, 44324, 468857, 628451, 937714, 1256902, 1869523, 1875428, 2513804, 3281999, 3739046, 4399157, 6563998, 7478092, 8798314, 13086661, 13127996, 17596628, 26173322, 52346644, 742200631, 1484401262, 2968802524, 5195404417, 10390808834, 20781617668]

約数ペア:

[(1, 20781617668), (2, 10390808834), (4, 5195404417), (7, 2968802524), (14, 1484401262), (28, 742200631), (397, 52346644), (794, 26173322), (1181, 17596628), (1583, 13127996), (1588, 13086661), (2362, 8798314), (2779, 7478092), (3166, 6563998), (4724, 4399157), (5558, 3739046), (6332, 3281999), (8267, 2513804), (11081, 1875428), (11116, 1869523), (16534, 1256902), (22162, 937714), (33068, 628451), (44324, 468857)]