18857728

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{3877}}^1$

素因数の和:3912

約数の個数: 36

約数和(自身を含む): 39633160

約数和(自身を除く): 20775432

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 3877, 4864, 7754, 15508, 31016, 62032, 73663, 124064, 147326, 248128, 294652, 496256, 589304, 992512, 1178608, 2357216, 4714432, 9428864, 18857728]

約数ペア:

[(1, 18857728), (2, 9428864), (4, 4714432), (8, 2357216), (16, 1178608), (19, 992512), (32, 589304), (38, 496256), (64, 294652), (76, 248128), (128, 147326), (152, 124064), (256, 73663), (304, 62032), (608, 31016), (1216, 15508), (2432, 7754), (3877, 4864)]