19692860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89513}}^1$

素因数の和:89533

約数の個数: 24

約数和(自身を含む): 45115056

約数和(自身を除く): 25422196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89513, 179026, 358052, 447565, 895130, 984643, 1790260, 1969286, 3938572, 4923215, 9846430, 19692860]

約数ペア:

[(1, 19692860), (2, 9846430), (4, 4923215), (5, 3938572), (10, 1969286), (11, 1790260), (20, 984643), (22, 895130), (44, 447565), (55, 358052), (110, 179026), (220, 89513)]