20131372784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{66221621}}^1$

素因数の和:66221648

約数の個数: 20

約数和(自身を含む): 41057405640

約数和(自身を除く): 20926032856

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 66221621, 132443242, 264886484, 529772968, 1059545936, 1258210799, 2516421598, 5032843196, 10065686392, 20131372784]

約数ペア:

[(1, 20131372784), (2, 10065686392), (4, 5032843196), (8, 2516421598), (16, 1258210799), (19, 1059545936), (38, 529772968), (76, 264886484), (152, 132443242), (304, 66221621)]