21963875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:200

約数の個数: 32

約数和(自身を含む): 29090880

約数和(自身を除く): 7127005

約数列:

[1, 5, 25, 29, 73, 83, 125, 145, 365, 415, 725, 1825, 2075, 2117, 2407, 3625, 6059, 9125, 10375, 10585, 12035, 30295, 52925, 60175, 151475, 175711, 264625, 300875, 757375, 878555, 4392775, 21963875]

約数ペア:

[(1, 21963875), (5, 4392775), (25, 878555), (29, 757375), (73, 300875), (83, 264625), (125, 175711), (145, 151475), (365, 60175), (415, 52925), (725, 30295), (1825, 12035), (2075, 10585), (2117, 10375), (2407, 9125), (3625, 6059)]