19787222

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 19887658

約数列:

[1, 2, 7, 13, 14, 23, 26, 29, 46, 58, 91, 161, 163, 182, 203, 299, 322, 326, 377, 406, 598, 667, 754, 1141, 1334, 2093, 2119, 2282, 2639, 3749, 4186, 4238, 4669, 4727, 5278, 7498, 8671, 9338, 9454, 14833, 17342, 26243, 29666, 33089, 48737, 52486, 60697, 61451, 66178, 97474, 108721, 121394, 122902, 217442, 341159, 430157, 682318, 761047, 860314, 1413373, 1522094, 2826746, 9893611, 19787222]

約数ペア:

[(1, 19787222), (2, 9893611), (7, 2826746), (13, 1522094), (14, 1413373), (23, 860314), (26, 761047), (29, 682318), (46, 430157), (58, 341159), (91, 217442), (161, 122902), (163, 121394), (182, 108721), (203, 97474), (299, 66178), (322, 61451), (326, 60697), (377, 52486), (406, 48737), (598, 33089), (667, 29666), (754, 26243), (1141, 17342), (1334, 14833), (2093, 9454), (2119, 9338), (2282, 8671), (2639, 7498), (3749, 5278), (4186, 4727), (4238, 4669)]