20843865

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 45308160

約数和(自身を除く): 24464295

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 49, 63, 69, 105, 115, 135, 137, 147, 161, 189, 207, 245, 315, 345, 411, 441, 483, 621, 685, 735, 805, 945, 959, 1035, 1127, 1233, 1323, 1449, 2055, 2205, 2415, 2877, 3105, 3151, 3381, 3699, 4347, 4795, 5635, 6165, 6615, 6713, 7245, 8631, 9453, 10143, 14385, 15755, 16905, 18495, 20139, 21735, 22057, 25893, 28359, 30429, 33565, 43155, 47265, 50715, 60417, 66171, 85077, 100695, 110285, 129465, 141795, 152145, 154399, 181251, 198513, 302085, 330855, 425385, 463197, 595539, 771995, 906255, 992565, 1389591, 2315985, 2977695, 4168773, 6947955, 20843865]

約数ペア:

[(1, 20843865), (3, 6947955), (5, 4168773), (7, 2977695), (9, 2315985), (15, 1389591), (21, 992565), (23, 906255), (27, 771995), (35, 595539), (45, 463197), (49, 425385), (63, 330855), (69, 302085), (105, 198513), (115, 181251), (135, 154399), (137, 152145), (147, 141795), (161, 129465), (189, 110285), (207, 100695), (245, 85077), (315, 66171), (345, 60417), (411, 50715), (441, 47265), (483, 43155), (621, 33565), (685, 30429), (735, 28359), (805, 25893), (945, 22057), (959, 21735), (1035, 20139), (1127, 18495), (1233, 16905), (1323, 15755), (1449, 14385), (2055, 10143), (2205, 9453), (2415, 8631), (2877, 7245), (3105, 6713), (3151, 6615), (3381, 6165), (3699, 5635), (4347, 4795)]