19821452

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 41217792

約数和(自身を除く): 21396340

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 101, 163, 172, 202, 301, 326, 404, 602, 652, 707, 1141, 1204, 1414, 2282, 2828, 4343, 4564, 7009, 8686, 14018, 16463, 17372, 28036, 30401, 32926, 49063, 60802, 65852, 98126, 115241, 121604, 196252, 230482, 460964, 707909, 1415818, 2831636, 4955363, 9910726, 19821452]

約数ペア:

[(1, 19821452), (2, 9910726), (4, 4955363), (7, 2831636), (14, 1415818), (28, 707909), (43, 460964), (86, 230482), (101, 196252), (163, 121604), (172, 115241), (202, 98126), (301, 65852), (326, 60802), (404, 49063), (602, 32926), (652, 30401), (707, 28036), (1141, 17372), (1204, 16463), (1414, 14018), (2282, 8686), (2828, 7009), (4343, 4564)]