20850284

素因数分解:

$2^2\times 7^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:212

約数の個数: 60

約数和(自身を含む): 46115664

約数和(自身を除く): 25265380

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 167, 182, 196, 334, 343, 364, 637, 668, 686, 1169, 1274, 1372, 2171, 2338, 2401, 2548, 4342, 4459, 4676, 4802, 8183, 8684, 8918, 9604, 15197, 16366, 17836, 30394, 31213, 32732, 57281, 60788, 62426, 106379, 114562, 124852, 212758, 229124, 400967, 425516, 744653, 801934, 1489306, 1603868, 2978612, 5212571, 10425142, 20850284]

約数ペア:

[(1, 20850284), (2, 10425142), (4, 5212571), (7, 2978612), (13, 1603868), (14, 1489306), (26, 801934), (28, 744653), (49, 425516), (52, 400967), (91, 229124), (98, 212758), (167, 124852), (182, 114562), (196, 106379), (334, 62426), (343, 60788), (364, 57281), (637, 32732), (668, 31213), (686, 30394), (1169, 17836), (1274, 16366), (1372, 15197), (2171, 9604), (2338, 8918), (2401, 8684), (2548, 8183), (4342, 4802), (4459, 4676)]