18962768

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{661}}^1$

素因数の和:843

約数の個数: 40

約数和(自身を含む): 40387296

約数和(自身を除く): 21424528

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 163, 176, 326, 652, 661, 1304, 1322, 1793, 2608, 2644, 3586, 5288, 7172, 7271, 10576, 14344, 14542, 28688, 29084, 58168, 107743, 116336, 215486, 430972, 861944, 1185173, 1723888, 2370346, 4740692, 9481384, 18962768]

約数ペア:

[(1, 18962768), (2, 9481384), (4, 4740692), (8, 2370346), (11, 1723888), (16, 1185173), (22, 861944), (44, 430972), (88, 215486), (163, 116336), (176, 107743), (326, 58168), (652, 29084), (661, 28688), (1304, 14542), (1322, 14344), (1793, 10576), (2608, 7271), (2644, 7172), (3586, 5288)]