20851270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1447}}^1$

素因数の和:1596

約数の個数: 32

約数和(自身を含む): 41285376

約数和(自身を除く): 20434106

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 131, 262, 655, 1310, 1441, 1447, 2882, 2894, 7205, 7235, 14410, 14470, 15917, 31834, 79585, 159170, 189557, 379114, 947785, 1895570, 2085127, 4170254, 10425635, 20851270]

約数ペア:

[(1, 20851270), (2, 10425635), (5, 4170254), (10, 2085127), (11, 1895570), (22, 947785), (55, 379114), (110, 189557), (131, 159170), (262, 79585), (655, 31834), (1310, 15917), (1441, 14470), (1447, 14410), (2882, 7235), (2894, 7205)]