255359223

素因数分解:

$3^6\times 7^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1$

素因数の和:495

約数の個数: 56

約数和(自身を含む): 441676928

約数和(自身を除く): 186317705

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 163, 189, 243, 307, 489, 567, 729, 921, 1141, 1467, 1701, 2149, 2763, 3423, 4401, 5103, 6447, 8289, 10269, 13203, 19341, 24867, 30807, 39609, 50041, 58023, 74601, 92421, 118827, 150123, 174069, 223803, 277263, 350287, 450369, 522207, 831789, 1050861, 1351107, 1566621, 3152583, 4053321, 9457749, 12159963, 28373247, 36479889, 85119741, 255359223]

約数ペア:

[(1, 255359223), (3, 85119741), (7, 36479889), (9, 28373247), (21, 12159963), (27, 9457749), (63, 4053321), (81, 3152583), (163, 1566621), (189, 1351107), (243, 1050861), (307, 831789), (489, 522207), (567, 450369), (729, 350287), (921, 277263), (1141, 223803), (1467, 174069), (1701, 150123), (2149, 118827), (2763, 92421), (3423, 74601), (4401, 58023), (5103, 50041), (6447, 39609), (8289, 30807), (10269, 24867), (13203, 19341)]