20722545

素因数分解:

$3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2411}}^1$

素因数の和:2613

約数の個数: 24

約数和(自身を含む): 36122112

約数和(自身を除く): 15399567

約数列:

[1, 3, 5, 9, 15, 45, 191, 573, 955, 1719, 2411, 2865, 7233, 8595, 12055, 21699, 36165, 108495, 460501, 1381503, 2302505, 4144509, 6907515, 20722545]

約数ペア:

[(1, 20722545), (3, 6907515), (5, 4144509), (9, 2302505), (15, 1381503), (45, 460501), (191, 108495), (573, 36165), (955, 21699), (1719, 12055), (2411, 8595), (2865, 7233)]