21601356

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2161}}^1$

素因数の和:2199

約数の個数: 72

約数和(自身を含む): 62109936

約数和(自身を除く): 40508580

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 68, 84, 98, 102, 119, 147, 196, 204, 238, 294, 357, 476, 588, 714, 833, 1428, 1666, 2161, 2499, 3332, 4322, 4998, 6483, 8644, 9996, 12966, 15127, 25932, 30254, 36737, 45381, 60508, 73474, 90762, 105889, 110211, 146948, 181524, 211778, 220422, 257159, 317667, 423556, 440844, 514318, 635334, 771477, 1028636, 1270668, 1542954, 1800113, 3085908, 3600226, 5400339, 7200452, 10800678, 21601356]

約数ペア:

[(1, 21601356), (2, 10800678), (3, 7200452), (4, 5400339), (6, 3600226), (7, 3085908), (12, 1800113), (14, 1542954), (17, 1270668), (21, 1028636), (28, 771477), (34, 635334), (42, 514318), (49, 440844), (51, 423556), (68, 317667), (84, 257159), (98, 220422), (102, 211778), (119, 181524), (147, 146948), (196, 110211), (204, 105889), (238, 90762), (294, 73474), (357, 60508), (476, 45381), (588, 36737), (714, 30254), (833, 25932), (1428, 15127), (1666, 12966), (2161, 9996), (2499, 8644), (3332, 6483), (4322, 4998)]