219080421

素因数分解:

$3^2\times 7^2\times {\mathrm{257}}^1\times {\mathrm{1933}}^1$

素因数の和:2210

約数の個数: 36

約数和(自身を含む): 369738252

約数和(自身を除く): 150657831

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 257, 441, 771, 1799, 1933, 2313, 5397, 5799, 12593, 13531, 16191, 17397, 37779, 40593, 94717, 113337, 121779, 284151, 496781, 852453, 1490343, 3477467, 4471029, 10432401, 24342269, 31297203, 73026807, 219080421]

約数ペア:

[(1, 219080421), (3, 73026807), (7, 31297203), (9, 24342269), (21, 10432401), (49, 4471029), (63, 3477467), (147, 1490343), (257, 852453), (441, 496781), (771, 284151), (1799, 121779), (1933, 113337), (2313, 94717), (5397, 40593), (5799, 37779), (12593, 17397), (13531, 16191)]