19903527

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3257}}^1$

素因数の和:3367

約数の個数: 24

約数和(自身を含む): 33205536

約数和(自身を除く): 13302009

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 3257, 6111, 9771, 22799, 29313, 68397, 205191, 315929, 947787, 2211503, 2843361, 6634509, 19903527]

約数ペア:

[(1, 19903527), (3, 6634509), (7, 2843361), (9, 2211503), (21, 947787), (63, 315929), (97, 205191), (291, 68397), (679, 29313), (873, 22799), (2037, 9771), (3257, 6111)]