21327842

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8377}}^1$

素因数の和:8465

約数の個数: 16

約数和(自身を含む): 34182240

約数和(自身を除く): 12854398

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8377, 16754, 159163, 318326, 561259, 1122518, 10663921, 21327842]

約数ペア:

[(1, 21327842), (2, 10663921), (19, 1122518), (38, 561259), (67, 318326), (134, 159163), (1273, 16754), (2546, 8377)]