19647818

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 12855862

約数列:

[1, 2, 17, 34, 43, 86, 89, 151, 178, 302, 731, 1462, 1513, 2567, 3026, 3827, 5134, 6493, 7654, 12986, 13439, 26878, 65059, 110381, 130118, 220762, 228463, 456926, 577877, 1155754, 9823909, 19647818]

約数ペア:

[(1, 19647818), (2, 9823909), (17, 1155754), (34, 577877), (43, 456926), (86, 228463), (89, 220762), (151, 130118), (178, 110381), (302, 65059), (731, 26878), (1462, 13439), (1513, 12986), (2567, 7654), (3026, 6493), (3827, 5134)]