20917188

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18743}}^1$

素因数の和:18784

約数の個数: 36

約数和(自身を含む): 54582528

約数和(自身を除く): 33665340

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18743, 37486, 56229, 74972, 112458, 168687, 224916, 337374, 581033, 674748, 1162066, 1743099, 2324132, 3486198, 5229297, 6972396, 10458594, 20917188]

約数ペア:

[(1, 20917188), (2, 10458594), (3, 6972396), (4, 5229297), (6, 3486198), (9, 2324132), (12, 1743099), (18, 1162066), (31, 674748), (36, 581033), (62, 337374), (93, 224916), (124, 168687), (186, 112458), (279, 74972), (372, 56229), (558, 37486), (1116, 18743)]