19677868

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{281}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 41122368

約数和(自身を除く): 21444500

約数列:

[1, 2, 4, 7, 14, 28, 41, 61, 82, 122, 164, 244, 281, 287, 427, 562, 574, 854, 1124, 1148, 1708, 1967, 2501, 3934, 5002, 7868, 10004, 11521, 17141, 17507, 23042, 34282, 35014, 46084, 68564, 70028, 80647, 119987, 161294, 239974, 322588, 479948, 702781, 1405562, 2811124, 4919467, 9838934, 19677868]

約数ペア:

[(1, 19677868), (2, 9838934), (4, 4919467), (7, 2811124), (14, 1405562), (28, 702781), (41, 479948), (61, 322588), (82, 239974), (122, 161294), (164, 119987), (244, 80647), (281, 70028), (287, 68564), (427, 46084), (562, 35014), (574, 34282), (854, 23042), (1124, 17507), (1148, 17141), (1708, 11521), (1967, 10004), (2501, 7868), (3934, 5002)]