28220517

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{10487}}^1$

素因数の和:10529

約数の個数: 24

約数和(自身を含む): 45811584

約数和(自身を除く): 17591067

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 10487, 31461, 94383, 136331, 241201, 408993, 723603, 1226979, 2170809, 3135613, 9406839, 28220517]

約数ペア:

[(1, 28220517), (3, 9406839), (9, 3135613), (13, 2170809), (23, 1226979), (39, 723603), (69, 408993), (117, 241201), (207, 136331), (299, 94383), (897, 31461), (2691, 10487)]