21193669858

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{51971}}^1$

素因数の和:52170

約数の個数: 32

約数和(自身を含む): 33677856000

約数和(自身を除く): 12484186142

約数列:

[1, 2, 29, 58, 79, 89, 158, 178, 2291, 2581, 4582, 5162, 7031, 14062, 51971, 103942, 203899, 407798, 1507159, 3014318, 4105709, 4625419, 8211418, 9250838, 119065561, 134137151, 238131122, 268274302, 365408101, 730816202, 10596834929, 21193669858]

約数ペア:

[(1, 21193669858), (2, 10596834929), (29, 730816202), (58, 365408101), (79, 268274302), (89, 238131122), (158, 134137151), (178, 119065561), (2291, 9250838), (2581, 8211418), (4582, 4625419), (5162, 4105709), (7031, 3014318), (14062, 1507159), (51971, 407798), (103942, 203899)]