19828648

素因数分解:

$2^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{883}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 42644160

約数和(自身を除く): 22815512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 401, 802, 883, 1604, 1766, 2807, 3208, 3532, 5614, 6181, 7064, 11228, 12362, 22456, 24724, 49448, 354083, 708166, 1416332, 2478581, 2832664, 4957162, 9914324, 19828648]

約数ペア:

[(1, 19828648), (2, 9914324), (4, 4957162), (7, 2832664), (8, 2478581), (14, 1416332), (28, 708166), (56, 354083), (401, 49448), (802, 24724), (883, 22456), (1604, 12362), (1766, 11228), (2807, 7064), (3208, 6181), (3532, 5614)]