21961485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 48642048

約数和(自身を除く): 26680563

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 31, 35, 39, 45, 63, 65, 91, 93, 105, 117, 155, 173, 195, 217, 273, 279, 315, 403, 455, 465, 519, 585, 651, 819, 865, 1085, 1209, 1211, 1365, 1395, 1557, 1953, 2015, 2249, 2595, 2821, 3255, 3627, 3633, 4095, 5363, 6045, 6055, 6747, 7785, 8463, 9765, 10899, 11245, 14105, 15743, 16089, 18135, 18165, 20241, 25389, 26815, 33735, 37541, 42315, 47229, 48267, 54495, 69719, 78715, 80445, 101205, 112623, 126945, 141687, 187705, 209157, 236145, 241335, 337869, 348595, 488033, 563115, 627471, 708435, 1045785, 1464099, 1689345, 2440165, 3137355, 4392297, 7320495, 21961485]

約数ペア:

[(1, 21961485), (3, 7320495), (5, 4392297), (7, 3137355), (9, 2440165), (13, 1689345), (15, 1464099), (21, 1045785), (31, 708435), (35, 627471), (39, 563115), (45, 488033), (63, 348595), (65, 337869), (91, 241335), (93, 236145), (105, 209157), (117, 187705), (155, 141687), (173, 126945), (195, 112623), (217, 101205), (273, 80445), (279, 78715), (315, 69719), (403, 54495), (455, 48267), (465, 47229), (519, 42315), (585, 37541), (651, 33735), (819, 26815), (865, 25389), (1085, 20241), (1209, 18165), (1211, 18135), (1365, 16089), (1395, 15743), (1557, 14105), (1953, 11245), (2015, 10899), (2249, 9765), (2595, 8463), (2821, 7785), (3255, 6747), (3627, 6055), (3633, 6045), (4095, 5363)]