20527983

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 36581376

約数和(自身を除く): 16053393

約数列:

[1, 3, 7, 9, 21, 23, 31, 63, 69, 93, 161, 207, 217, 279, 457, 483, 651, 713, 1371, 1449, 1953, 2139, 3199, 4113, 4991, 6417, 9597, 10511, 14167, 14973, 28791, 31533, 42501, 44919, 73577, 94599, 99169, 127503, 220731, 297507, 325841, 662193, 892521, 977523, 2280887, 2932569, 6842661, 20527983]

約数ペア:

[(1, 20527983), (3, 6842661), (7, 2932569), (9, 2280887), (21, 977523), (23, 892521), (31, 662193), (63, 325841), (69, 297507), (93, 220731), (161, 127503), (207, 99169), (217, 94599), (279, 73577), (457, 44919), (483, 42501), (651, 31533), (713, 28791), (1371, 14973), (1449, 14167), (1953, 10511), (2139, 9597), (3199, 6417), (4113, 4991)]