18889744

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7243}}^1$

素因数の和:7414

約数の個数: 20

約数和(自身を含む): 36828496

約数和(自身を除く): 17938752

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7243, 14486, 28972, 57944, 115888, 1180609, 2361218, 4722436, 9444872, 18889744]

約数ペア:

[(1, 18889744), (2, 9444872), (4, 4722436), (8, 2361218), (16, 1180609), (163, 115888), (326, 57944), (652, 28972), (1304, 14486), (2608, 7243)]