19816756

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 35823816

約数和(自身を除く): 16007060

約数列:

[1, 2, 4, 37, 74, 148, 257, 514, 521, 1028, 1042, 2084, 9509, 19018, 19277, 38036, 38554, 77108, 133897, 267794, 535588, 4954189, 9908378, 19816756]

約数ペア:

[(1, 19816756), (2, 9908378), (4, 4954189), (37, 535588), (74, 267794), (148, 133897), (257, 77108), (514, 38554), (521, 38036), (1028, 19277), (1042, 19018), (2084, 9509)]