18521804

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1783}}^1$

素因数の和:1854

約数の個数: 36

約数和(自身を含む): 38438064

約数和(自身を除く): 19916260

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 1783, 2597, 3566, 5194, 7132, 10388, 12481, 24962, 49924, 87367, 94499, 174734, 188998, 349468, 377996, 661493, 1322986, 2645972, 4630451, 9260902, 18521804]

約数ペア:

[(1, 18521804), (2, 9260902), (4, 4630451), (7, 2645972), (14, 1322986), (28, 661493), (49, 377996), (53, 349468), (98, 188998), (106, 174734), (196, 94499), (212, 87367), (371, 49924), (742, 24962), (1484, 12481), (1783, 10388), (2597, 7132), (3566, 5194)]