21871144

素因数分解:

$2^3\times {\mathrm{37}}^2\times {\mathrm{1997}}^1$

素因数の和:2077

約数の個数: 24

約数和(自身を含む): 42167790

約数和(自身を除く): 20296646

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 1369, 1997, 2738, 3994, 5476, 7988, 10952, 15976, 73889, 147778, 295556, 591112, 2733893, 5467786, 10935572, 21871144]

約数ペア:

[(1, 21871144), (2, 10935572), (4, 5467786), (8, 2733893), (37, 591112), (74, 295556), (148, 147778), (296, 73889), (1369, 15976), (1997, 10952), (2738, 7988), (3994, 5476)]