20628216

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{1949}}^1$

素因数の和:1978

約数の個数: 96

約数和(自身を含む): 66690000

約数和(自身を除く): 46061784

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 72, 84, 98, 108, 126, 147, 168, 189, 196, 216, 252, 294, 378, 392, 441, 504, 588, 756, 882, 1176, 1323, 1512, 1764, 1949, 2646, 3528, 3898, 5292, 5847, 7796, 10584, 11694, 13643, 15592, 17541, 23388, 27286, 35082, 40929, 46776, 52623, 54572, 70164, 81858, 95501, 105246, 109144, 122787, 140328, 163716, 191002, 210492, 245574, 286503, 327432, 368361, 382004, 420984, 491148, 573006, 736722, 764008, 859509, 982296, 1146012, 1473444, 1719018, 2292024, 2578527, 2946888, 3438036, 5157054, 6876072, 10314108, 20628216]

約数ペア:

[(1, 20628216), (2, 10314108), (3, 6876072), (4, 5157054), (6, 3438036), (7, 2946888), (8, 2578527), (9, 2292024), (12, 1719018), (14, 1473444), (18, 1146012), (21, 982296), (24, 859509), (27, 764008), (28, 736722), (36, 573006), (42, 491148), (49, 420984), (54, 382004), (56, 368361), (63, 327432), (72, 286503), (84, 245574), (98, 210492), (108, 191002), (126, 163716), (147, 140328), (168, 122787), (189, 109144), (196, 105246), (216, 95501), (252, 81858), (294, 70164), (378, 54572), (392, 52623), (441, 46776), (504, 40929), (588, 35082), (756, 27286), (882, 23388), (1176, 17541), (1323, 15592), (1512, 13643), (1764, 11694), (1949, 10584), (2646, 7796), (3528, 5847), (3898, 5292)]