19958778

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 54446400

約数和(自身を除く): 34487622

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 49, 54, 57, 63, 98, 114, 126, 133, 147, 171, 189, 266, 294, 342, 378, 397, 399, 441, 513, 794, 798, 882, 931, 1026, 1191, 1197, 1323, 1862, 2382, 2394, 2646, 2779, 2793, 3573, 3591, 5558, 5586, 7146, 7182, 7543, 8337, 8379, 10719, 15086, 16674, 16758, 19453, 21438, 22629, 25011, 25137, 38906, 45258, 50022, 50274, 52801, 58359, 67887, 75033, 105602, 116718, 135774, 150066, 158403, 175077, 203661, 316806, 350154, 369607, 407322, 475209, 525231, 739214, 950418, 1050462, 1108821, 1425627, 2217642, 2851254, 3326463, 6652926, 9979389, 19958778]

約数ペア:

[(1, 19958778), (2, 9979389), (3, 6652926), (6, 3326463), (7, 2851254), (9, 2217642), (14, 1425627), (18, 1108821), (19, 1050462), (21, 950418), (27, 739214), (38, 525231), (42, 475209), (49, 407322), (54, 369607), (57, 350154), (63, 316806), (98, 203661), (114, 175077), (126, 158403), (133, 150066), (147, 135774), (171, 116718), (189, 105602), (266, 75033), (294, 67887), (342, 58359), (378, 52801), (397, 50274), (399, 50022), (441, 45258), (513, 38906), (794, 25137), (798, 25011), (882, 22629), (931, 21438), (1026, 19453), (1191, 16758), (1197, 16674), (1323, 15086), (1862, 10719), (2382, 8379), (2394, 8337), (2646, 7543), (2779, 7182), (2793, 7146), (3573, 5586), (3591, 5558)]