21616509

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{6217}}^1$

素因数の和:6300

約数の個数: 16

約数和(自身を含む): 30841280

約数和(自身を除く): 9224771

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 6217, 18651, 118123, 354369, 379237, 1137711, 7205503, 21616509]

約数ペア:

[(1, 21616509), (3, 7205503), (19, 1137711), (57, 379237), (61, 354369), (183, 118123), (1159, 18651), (3477, 6217)]