18957764

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 40346880

約数和(自身を除く): 21389116

約数列:

[1, 2, 4, 7, 14, 28, 29, 37, 58, 74, 116, 148, 203, 259, 406, 518, 631, 812, 1036, 1073, 1262, 2146, 2524, 4292, 4417, 7511, 8834, 15022, 17668, 18299, 23347, 30044, 36598, 46694, 73196, 93388, 128093, 163429, 256186, 326858, 512372, 653716, 677063, 1354126, 2708252, 4739441, 9478882, 18957764]

約数ペア:

[(1, 18957764), (2, 9478882), (4, 4739441), (7, 2708252), (14, 1354126), (28, 677063), (29, 653716), (37, 512372), (58, 326858), (74, 256186), (116, 163429), (148, 128093), (203, 93388), (259, 73196), (406, 46694), (518, 36598), (631, 30044), (812, 23347), (1036, 18299), (1073, 17668), (1262, 15022), (2146, 8834), (2524, 7511), (4292, 4417)]