21256278

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 45894576

約数和(自身を除く): 24638298

約数列:

[1, 2, 3, 6, 23, 37, 46, 69, 74, 111, 138, 181, 222, 362, 529, 543, 851, 1058, 1086, 1587, 1702, 2553, 3174, 4163, 5106, 6697, 8326, 12489, 13394, 19573, 20091, 24978, 39146, 40182, 58719, 95749, 117438, 154031, 191498, 287247, 308062, 462093, 574494, 924186, 3542713, 7085426, 10628139, 21256278]

約数ペア:

[(1, 21256278), (2, 10628139), (3, 7085426), (6, 3542713), (23, 924186), (37, 574494), (46, 462093), (69, 308062), (74, 287247), (111, 191498), (138, 154031), (181, 117438), (222, 95749), (362, 58719), (529, 40182), (543, 39146), (851, 24978), (1058, 20091), (1086, 19573), (1587, 13394), (1702, 12489), (2553, 8326), (3174, 6697), (4163, 5106)]