19975472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113497}}^1$

素因数の和:113516

約数の個数: 20

約数和(自身を含む): 42221256

約数和(自身を除く): 22245784

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113497, 226994, 453988, 907976, 1248467, 1815952, 2496934, 4993868, 9987736, 19975472]

約数ペア:

[(1, 19975472), (2, 9987736), (4, 4993868), (8, 2496934), (11, 1815952), (16, 1248467), (22, 907976), (44, 453988), (88, 226994), (176, 113497)]