1821986775

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{10613}}^1$

素因数の和:10745

約数の個数: 72

約数和(自身を含む): 3764148960

約数和(自身を除く): 1942162185

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 109, 175, 225, 315, 327, 525, 545, 763, 981, 1575, 1635, 2289, 2725, 3815, 4905, 6867, 8175, 10613, 11445, 19075, 24525, 31839, 34335, 53065, 57225, 74291, 95517, 159195, 171675, 222873, 265325, 371455, 477585, 668619, 795975, 1114365, 1156817, 1857275, 2387925, 3343095, 3470451, 5571825, 5784085, 8097719, 10411353, 16715475, 17352255, 24293157, 28920425, 40488595, 52056765, 72879471, 86761275, 121465785, 202442975, 260283825, 364397355, 607328925, 1821986775]

約数ペア:

[(1, 1821986775), (3, 607328925), (5, 364397355), (7, 260283825), (9, 202442975), (15, 121465785), (21, 86761275), (25, 72879471), (35, 52056765), (45, 40488595), (63, 28920425), (75, 24293157), (105, 17352255), (109, 16715475), (175, 10411353), (225, 8097719), (315, 5784085), (327, 5571825), (525, 3470451), (545, 3343095), (763, 2387925), (981, 1857275), (1575, 1156817), (1635, 1114365), (2289, 795975), (2725, 668619), (3815, 477585), (4905, 371455), (6867, 265325), (8175, 222873), (10613, 171675), (11445, 159195), (19075, 95517), (24525, 74291), (31839, 57225), (34335, 53065)]