20411454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:361

約数の個数: 64

約数和(自身を含む): 49139712

約数和(自身を除く): 28728258

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 61, 62, 93, 122, 183, 186, 217, 257, 366, 427, 434, 514, 651, 771, 854, 1281, 1302, 1542, 1799, 1891, 2562, 3598, 3782, 5397, 5673, 7967, 10794, 11346, 13237, 15677, 15934, 23901, 26474, 31354, 39711, 47031, 47802, 55769, 79422, 94062, 109739, 111538, 167307, 219478, 329217, 334614, 485987, 658434, 971974, 1457961, 2915922, 3401909, 6803818, 10205727, 20411454]

約数ペア:

[(1, 20411454), (2, 10205727), (3, 6803818), (6, 3401909), (7, 2915922), (14, 1457961), (21, 971974), (31, 658434), (42, 485987), (61, 334614), (62, 329217), (93, 219478), (122, 167307), (183, 111538), (186, 109739), (217, 94062), (257, 79422), (366, 55769), (427, 47802), (434, 47031), (514, 39711), (651, 31354), (771, 26474), (854, 23901), (1281, 15934), (1302, 15677), (1542, 13237), (1799, 11346), (1891, 10794), (2562, 7967), (3598, 5673), (3782, 5397)]