21547515

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3037}}^1$

素因数の和:3099

約数の個数: 32

約数和(自身を含む): 38497536

約数和(自身を除く): 16950021

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 3037, 7095, 9111, 15185, 33407, 45555, 100221, 130591, 167035, 391773, 501105, 652955, 1436501, 1958865, 4309503, 7182505, 21547515]

約数ペア:

[(1, 21547515), (3, 7182505), (5, 4309503), (11, 1958865), (15, 1436501), (33, 652955), (43, 501105), (55, 391773), (129, 167035), (165, 130591), (215, 100221), (473, 45555), (645, 33407), (1419, 15185), (2365, 9111), (3037, 7095)]