21085732

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1259}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 17016668

約数列:

[1, 2, 4, 53, 79, 106, 158, 212, 316, 1259, 2518, 4187, 5036, 8374, 16748, 66727, 99461, 133454, 198922, 266908, 397844, 5271433, 10542866, 21085732]

約数ペア:

[(1, 21085732), (2, 10542866), (4, 5271433), (53, 397844), (79, 266908), (106, 198922), (158, 133454), (212, 99461), (316, 66727), (1259, 16748), (2518, 8374), (4187, 5036)]