15856965

素因数分解:

$3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 29492736

約数和(自身を除く): 13635771

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 243, 279, 405, 421, 465, 837, 1215, 1263, 1395, 2105, 2511, 3789, 4185, 6315, 7533, 11367, 12555, 13051, 18945, 34101, 37665, 39153, 56835, 65255, 102303, 117459, 170505, 195765, 352377, 511515, 587295, 1057131, 1761885, 3171393, 5285655, 15856965]

約数ペア:

[(1, 15856965), (3, 5285655), (5, 3171393), (9, 1761885), (15, 1057131), (27, 587295), (31, 511515), (45, 352377), (81, 195765), (93, 170505), (135, 117459), (155, 102303), (243, 65255), (279, 56835), (405, 39153), (421, 37665), (465, 34101), (837, 18945), (1215, 13051), (1263, 12555), (1395, 11367), (2105, 7533), (2511, 6315), (3789, 4185)]