21986154

素因数分解:

$2^1\times 3^5\times {\mathrm{19}}^1\times {\mathrm{2381}}^1$

素因数の和:2417

約数の個数: 48

約数和(自身を含む): 52022880

約数和(自身を除く): 30036726

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 342, 486, 513, 1026, 1539, 2381, 3078, 4617, 4762, 7143, 9234, 14286, 21429, 42858, 45239, 64287, 90478, 128574, 135717, 192861, 271434, 385722, 407151, 578583, 814302, 1157166, 1221453, 2442906, 3664359, 7328718, 10993077, 21986154]

約数ペア:

[(1, 21986154), (2, 10993077), (3, 7328718), (6, 3664359), (9, 2442906), (18, 1221453), (19, 1157166), (27, 814302), (38, 578583), (54, 407151), (57, 385722), (81, 271434), (114, 192861), (162, 135717), (171, 128574), (243, 90478), (342, 64287), (486, 45239), (513, 42858), (1026, 21429), (1539, 14286), (2381, 9234), (3078, 7143), (4617, 4762)]