21607125

素因数分解:

$3^1\times 5^3\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 36281856

約数和(自身を除く): 14674731

約数列:

[1, 3, 5, 15, 25, 75, 125, 157, 367, 375, 471, 785, 1101, 1835, 2355, 3925, 5505, 9175, 11775, 19625, 27525, 45875, 57619, 58875, 137625, 172857, 288095, 864285, 1440475, 4321425, 7202375, 21607125]

約数ペア:

[(1, 21607125), (3, 7202375), (5, 4321425), (15, 1440475), (25, 864285), (75, 288095), (125, 172857), (157, 137625), (367, 58875), (375, 57619), (471, 45875), (785, 27525), (1101, 19625), (1835, 11775), (2355, 9175), (3925, 5505)]