21473992

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157897}}^1$

素因数の和:157920

約数の個数: 16

約数和(自身を含む): 42632460

約数和(自身を除く): 21158468

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157897, 315794, 631588, 1263176, 2684249, 5368498, 10736996, 21473992]

約数ペア:

[(1, 21473992), (2, 10736996), (4, 5368498), (8, 2684249), (17, 1263176), (34, 631588), (68, 315794), (136, 157897)]