21654100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16657}}^1$

素因数の和:16684

約数の個数: 36

約数和(自身を含む): 50607004

約数和(自身を除く): 28952904

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16657, 33314, 66628, 83285, 166570, 216541, 333140, 416425, 433082, 832850, 866164, 1082705, 1665700, 2165410, 4330820, 5413525, 10827050, 21654100]

約数ペア:

[(1, 21654100), (2, 10827050), (4, 5413525), (5, 4330820), (10, 2165410), (13, 1665700), (20, 1082705), (25, 866164), (26, 832850), (50, 433082), (52, 416425), (65, 333140), (100, 216541), (130, 166570), (260, 83285), (325, 66628), (650, 33314), (1300, 16657)]