28243839

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{37}}^2$

素因数の和:136

約数の個数: 36

約数和(自身を含む): 43571976

約数和(自身を除く): 15328137

約数列:

[1, 3, 13, 23, 37, 39, 69, 111, 299, 481, 529, 851, 897, 1369, 1443, 1587, 2553, 4107, 6877, 11063, 17797, 19573, 20631, 31487, 33189, 53391, 58719, 94461, 254449, 409331, 724201, 763347, 1227993, 2172603, 9414613, 28243839]

約数ペア:

[(1, 28243839), (3, 9414613), (13, 2172603), (23, 1227993), (37, 763347), (39, 724201), (69, 409331), (111, 254449), (299, 94461), (481, 58719), (529, 53391), (851, 33189), (897, 31487), (1369, 20631), (1443, 19573), (1587, 17797), (2553, 11063), (4107, 6877)]