20943369

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 31408520

約数和(自身を除く): 10465151

約数列:

[1, 3, 9, 37, 109, 111, 327, 333, 577, 981, 1731, 4033, 5193, 12099, 21349, 36297, 62893, 64047, 188679, 192141, 566037, 2327041, 6981123, 20943369]

約数ペア:

[(1, 20943369), (3, 6981123), (9, 2327041), (37, 566037), (109, 192141), (111, 188679), (327, 64047), (333, 62893), (577, 36297), (981, 21349), (1731, 12099), (4033, 5193)]