20972252

素因数分解:

$2^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2393}}^1$

素因数の和:2717

約数の個数: 24

約数和(自身を含む): 42096096

約数和(自身を除く): 21123844

約数列:

[1, 2, 4, 7, 14, 28, 313, 626, 1252, 2191, 2393, 4382, 4786, 8764, 9572, 16751, 33502, 67004, 749009, 1498018, 2996036, 5243063, 10486126, 20972252]

約数ペア:

[(1, 20972252), (2, 10486126), (4, 5243063), (7, 2996036), (14, 1498018), (28, 749009), (313, 67004), (626, 33502), (1252, 16751), (2191, 9572), (2393, 8764), (4382, 4786)]