21184065

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 44582400

約数和(自身を除く): 23398335

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 29, 35, 45, 63, 87, 105, 135, 145, 189, 203, 261, 315, 435, 609, 773, 783, 945, 1015, 1305, 1827, 2319, 3045, 3865, 3915, 5411, 5481, 6957, 9135, 11595, 16233, 20871, 22417, 27055, 27405, 34785, 48699, 67251, 81165, 104355, 112085, 146097, 156919, 201753, 243495, 336255, 470757, 605259, 730485, 784595, 1008765, 1412271, 2353785, 3026295, 4236813, 7061355, 21184065]

約数ペア:

[(1, 21184065), (3, 7061355), (5, 4236813), (7, 3026295), (9, 2353785), (15, 1412271), (21, 1008765), (27, 784595), (29, 730485), (35, 605259), (45, 470757), (63, 336255), (87, 243495), (105, 201753), (135, 156919), (145, 146097), (189, 112085), (203, 104355), (261, 81165), (315, 67251), (435, 48699), (609, 34785), (773, 27405), (783, 27055), (945, 22417), (1015, 20871), (1305, 16233), (1827, 11595), (2319, 9135), (3045, 6957), (3865, 5481), (3915, 5411)]