19920166

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 36771840

約数和(自身を除く): 16851674

約数列:

[1, 2, 7, 14, 31, 49, 62, 79, 83, 98, 158, 166, 217, 434, 553, 581, 1106, 1162, 1519, 2449, 2573, 3038, 3871, 4067, 4898, 5146, 6557, 7742, 8134, 13114, 17143, 18011, 34286, 36022, 45899, 91798, 120001, 126077, 203267, 240002, 252154, 321293, 406534, 642586, 1422869, 2845738, 9960083, 19920166]

約数ペア:

[(1, 19920166), (2, 9960083), (7, 2845738), (14, 1422869), (31, 642586), (49, 406534), (62, 321293), (79, 252154), (83, 240002), (98, 203267), (158, 126077), (166, 120001), (217, 91798), (434, 45899), (553, 36022), (581, 34286), (1106, 18011), (1162, 17143), (1519, 13114), (2449, 8134), (2573, 7742), (3038, 6557), (3871, 5146), (4067, 4898)]