15996915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1901}}^1$

素因数の和:1940

約数の個数: 48

約数和(自身を含む): 32044896

約数和(自身を除く): 16047981

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 153, 165, 187, 255, 495, 561, 765, 935, 1683, 1901, 2805, 5703, 8415, 9505, 17109, 20911, 28515, 32317, 62733, 85545, 96951, 104555, 161585, 188199, 290853, 313665, 355487, 484755, 940995, 1066461, 1454265, 1777435, 3199383, 5332305, 15996915]

約数ペア:

[(1, 15996915), (3, 5332305), (5, 3199383), (9, 1777435), (11, 1454265), (15, 1066461), (17, 940995), (33, 484755), (45, 355487), (51, 313665), (55, 290853), (85, 188199), (99, 161585), (153, 104555), (165, 96951), (187, 85545), (255, 62733), (495, 32317), (561, 28515), (765, 20911), (935, 17109), (1683, 9505), (1901, 8415), (2805, 5703)]