21200408

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1069}}^1$

素因数の和:1179

約数の個数: 32

約数和(自身を含む): 41473200

約数和(自身を除く): 20272792

約数列:

[1, 2, 4, 8, 37, 67, 74, 134, 148, 268, 296, 536, 1069, 2138, 2479, 4276, 4958, 8552, 9916, 19832, 39553, 71623, 79106, 143246, 158212, 286492, 316424, 572984, 2650051, 5300102, 10600204, 21200408]

約数ペア:

[(1, 21200408), (2, 10600204), (4, 5300102), (8, 2650051), (37, 572984), (67, 316424), (74, 286492), (134, 158212), (148, 143246), (268, 79106), (296, 71623), (536, 39553), (1069, 19832), (2138, 9916), (2479, 8552), (4276, 4958)]