20726145

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:863

約数の個数: 64

約数和(自身を含む): 42612480

約数和(自身を除く): 21886335

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 85, 99, 135, 153, 165, 187, 255, 297, 459, 495, 561, 765, 821, 935, 1485, 1683, 2295, 2463, 2805, 4105, 5049, 7389, 8415, 9031, 12315, 13957, 22167, 25245, 27093, 36945, 41871, 45155, 69785, 81279, 110835, 125613, 135465, 153527, 209355, 243837, 376839, 406395, 460581, 628065, 767635, 1219185, 1381743, 1884195, 2302905, 4145229, 6908715, 20726145]

約数ペア:

[(1, 20726145), (3, 6908715), (5, 4145229), (9, 2302905), (11, 1884195), (15, 1381743), (17, 1219185), (27, 767635), (33, 628065), (45, 460581), (51, 406395), (55, 376839), (85, 243837), (99, 209355), (135, 153527), (153, 135465), (165, 125613), (187, 110835), (255, 81279), (297, 69785), (459, 45155), (495, 41871), (561, 36945), (765, 27093), (821, 25245), (935, 22167), (1485, 13957), (1683, 12315), (2295, 9031), (2463, 8415), (2805, 7389), (4105, 5049)]