20801816

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12809}}^1$

素因数の和:12851

約数の個数: 32

約数和(自身を含む): 46116000

約数和(自身を除く): 25314184

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12809, 25618, 51236, 89663, 102472, 179326, 358652, 371461, 717304, 742922, 1485844, 2600227, 2971688, 5200454, 10400908, 20801816]

約数ペア:

[(1, 20801816), (2, 10400908), (4, 5200454), (7, 2971688), (8, 2600227), (14, 1485844), (28, 742922), (29, 717304), (56, 371461), (58, 358652), (116, 179326), (203, 102472), (232, 89663), (406, 51236), (812, 25618), (1624, 12809)]