28970123

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 32

約数和(自身を含む): 37296000

約数和(自身を除く): 8325877

約数列:

[1, 7, 13, 49, 73, 89, 91, 343, 511, 623, 637, 949, 1157, 3577, 4361, 4459, 6497, 6643, 8099, 25039, 30527, 45479, 46501, 56693, 84461, 318353, 325507, 396851, 591227, 2228471, 4138589, 28970123]

約数ペア:

[(1, 28970123), (7, 4138589), (13, 2228471), (49, 591227), (73, 396851), (89, 325507), (91, 318353), (343, 84461), (511, 56693), (623, 46501), (637, 45479), (949, 30527), (1157, 25039), (3577, 8099), (4361, 6643), (4459, 6497)]