21486625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:226

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 7342175

約数列:

[1, 5, 19, 25, 83, 95, 109, 125, 415, 475, 545, 1577, 2071, 2075, 2375, 2725, 7885, 9047, 10355, 10375, 13625, 39425, 45235, 51775, 171893, 197125, 226175, 258875, 859465, 1130875, 4297325, 21486625]

約数ペア:

[(1, 21486625), (5, 4297325), (19, 1130875), (25, 859465), (83, 258875), (95, 226175), (109, 197125), (125, 171893), (415, 51775), (475, 45235), (545, 39425), (1577, 13625), (2071, 10375), (2075, 10355), (2375, 9047), (2725, 7885)]