201516903

素因数分解:

$3^4\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1213}}^1$

素因数の和:1525

約数の個数: 40

約数和(自身を含む): 345494688

約数和(自身を除く): 143977785

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 293, 567, 879, 1213, 2051, 2637, 3639, 6153, 7911, 8491, 10917, 18459, 23733, 25473, 32751, 55377, 76419, 98253, 166131, 229257, 355409, 687771, 1066227, 2487863, 3198681, 7463589, 9596043, 22390767, 28788129, 67172301, 201516903]

約数ペア:

[(1, 201516903), (3, 67172301), (7, 28788129), (9, 22390767), (21, 9596043), (27, 7463589), (63, 3198681), (81, 2487863), (189, 1066227), (293, 687771), (567, 355409), (879, 229257), (1213, 166131), (2051, 98253), (2637, 76419), (3639, 55377), (6153, 32751), (7911, 25473), (8491, 23733), (10917, 18459)]