19728258

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{1103}}^1$

素因数の和:1390

約数の個数: 32

約数和(自身を含む): 43241472

約数和(自身を除く): 23513214

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 271, 542, 813, 1103, 1626, 2206, 2981, 3309, 5962, 6618, 8943, 12133, 17886, 24266, 36399, 72798, 298913, 597826, 896739, 1793478, 3288043, 6576086, 9864129, 19728258]

約数ペア:

[(1, 19728258), (2, 9864129), (3, 6576086), (6, 3288043), (11, 1793478), (22, 896739), (33, 597826), (66, 298913), (271, 72798), (542, 36399), (813, 24266), (1103, 17886), (1626, 12133), (2206, 8943), (2981, 6618), (3309, 5962)]