11211991

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:750

約数の個数: 16

約数和(自身を含む): 13353984

約数和(自身を除く): 2141993

約数列:

[1, 7, 47, 53, 329, 371, 643, 2491, 4501, 17437, 30221, 34079, 211547, 238553, 1601713, 11211991]

約数ペア:

[(1, 11211991), (7, 1601713), (47, 238553), (53, 211547), (329, 34079), (371, 30221), (643, 17437), (2491, 4501)]