81160821

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1433}}^1$

素因数の和:1506

約数の個数: 48

約数和(自身を含む): 143170560

約数和(自身を除く): 62009739

約数列:

[1, 3, 7, 9, 21, 29, 31, 63, 87, 93, 203, 217, 261, 279, 609, 651, 899, 1433, 1827, 1953, 2697, 4299, 6293, 8091, 10031, 12897, 18879, 30093, 41557, 44423, 56637, 90279, 124671, 133269, 290899, 310961, 374013, 399807, 872697, 932883, 1288267, 2618091, 2798649, 3864801, 9017869, 11594403, 27053607, 81160821]

約数ペア:

[(1, 81160821), (3, 27053607), (7, 11594403), (9, 9017869), (21, 3864801), (29, 2798649), (31, 2618091), (63, 1288267), (87, 932883), (93, 872697), (203, 399807), (217, 374013), (261, 310961), (279, 290899), (609, 133269), (651, 124671), (899, 90279), (1433, 56637), (1827, 44423), (1953, 41557), (2697, 30093), (4299, 18879), (6293, 12897), (8091, 10031)]