201521115

素因数分解:

$3^8\times 5^1\times {\mathrm{6143}}^1$

素因数の和:6172

約数の個数: 36

約数和(自身を含む): 362778624

約数和(自身を除く): 161257509

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2187, 3645, 6143, 6561, 10935, 18429, 30715, 32805, 55287, 92145, 165861, 276435, 497583, 829305, 1492749, 2487915, 4478247, 7463745, 13434741, 22391235, 40304223, 67173705, 201521115]

約数ペア:

[(1, 201521115), (3, 67173705), (5, 40304223), (9, 22391235), (15, 13434741), (27, 7463745), (45, 4478247), (81, 2487915), (135, 1492749), (243, 829305), (405, 497583), (729, 276435), (1215, 165861), (2187, 92145), (3645, 55287), (6143, 32805), (6561, 30715), (10935, 18429)]