21501662

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 42491904

約数和(自身を除く): 20990242

約数列:

[1, 2, 7, 13, 14, 26, 31, 37, 62, 74, 91, 103, 182, 206, 217, 259, 403, 434, 481, 518, 721, 806, 962, 1147, 1339, 1442, 2294, 2678, 2821, 3193, 3367, 3811, 5642, 6386, 6734, 7622, 8029, 9373, 14911, 16058, 18746, 22351, 26677, 29822, 41509, 44702, 49543, 53354, 83018, 99086, 104377, 118141, 208754, 236282, 290563, 346801, 581126, 693602, 826987, 1535833, 1653974, 3071666, 10750831, 21501662]

約数ペア:

[(1, 21501662), (2, 10750831), (7, 3071666), (13, 1653974), (14, 1535833), (26, 826987), (31, 693602), (37, 581126), (62, 346801), (74, 290563), (91, 236282), (103, 208754), (182, 118141), (206, 104377), (217, 99086), (259, 83018), (403, 53354), (434, 49543), (481, 44702), (518, 41509), (721, 29822), (806, 26677), (962, 22351), (1147, 18746), (1339, 16058), (1442, 14911), (2294, 9373), (2678, 8029), (2821, 7622), (3193, 6734), (3367, 6386), (3811, 5642)]