21747700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16729}}^1$

素因数の和:16756

約数の個数: 36

約数和(自身を含む): 50825740

約数和(自身を除く): 29078040

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16729, 33458, 66916, 83645, 167290, 217477, 334580, 418225, 434954, 836450, 869908, 1087385, 1672900, 2174770, 4349540, 5436925, 10873850, 21747700]

約数ペア:

[(1, 21747700), (2, 10873850), (4, 5436925), (5, 4349540), (10, 2174770), (13, 1672900), (20, 1087385), (25, 869908), (26, 836450), (50, 434954), (52, 418225), (65, 334580), (100, 217477), (130, 167290), (260, 83645), (325, 66916), (650, 33458), (1300, 16729)]