18694784

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{7687}}^1$

素因数の和:7720

約数の個数: 32

約数和(自身を含む): 39208800

約数和(自身を除く): 20514016

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 7687, 15374, 30748, 61496, 122992, 146053, 245984, 292106, 491968, 584212, 983936, 1168424, 2336848, 4673696, 9347392, 18694784]

約数ペア:

[(1, 18694784), (2, 9347392), (4, 4673696), (8, 2336848), (16, 1168424), (19, 983936), (32, 584212), (38, 491968), (64, 292106), (76, 245984), (128, 146053), (152, 122992), (304, 61496), (608, 30748), (1216, 15374), (2432, 7687)]