18729136

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61609}}^1$

素因数の和:61636

約数の個数: 20

約数和(自身を含む): 38198200

約数和(自身を除く): 19469064

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61609, 123218, 246436, 492872, 985744, 1170571, 2341142, 4682284, 9364568, 18729136]

約数ペア:

[(1, 18729136), (2, 9364568), (4, 4682284), (8, 2341142), (16, 1170571), (19, 985744), (38, 492872), (76, 246436), (152, 123218), (304, 61609)]