21805099996

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{1999}}^1\times {\mathrm{34519}}^1$

素因数の和:36601

約数の個数: 24

約数和(自身を含む): 38662400000

約数和(自身を除く): 16857300004

約数列:

[1, 2, 4, 79, 158, 316, 1999, 3998, 7996, 34519, 69038, 138076, 157921, 315842, 631684, 2727001, 5454002, 10908004, 69003481, 138006962, 276013924, 5451274999, 10902549998, 21805099996]

約数ペア:

[(1, 21805099996), (2, 10902549998), (4, 5451274999), (79, 276013924), (158, 138006962), (316, 69003481), (1999, 10908004), (3998, 5454002), (7996, 2727001), (34519, 631684), (69038, 315842), (138076, 157921)]