19882588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1399}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22453412

約数列:

[1, 2, 4, 11, 17, 19, 22, 34, 38, 44, 68, 76, 187, 209, 323, 374, 418, 646, 748, 836, 1292, 1399, 2798, 3553, 5596, 7106, 14212, 15389, 23783, 26581, 30778, 47566, 53162, 61556, 95132, 106324, 261613, 292391, 451877, 523226, 584782, 903754, 1046452, 1169564, 1807508, 4970647, 9941294, 19882588]

約数ペア:

[(1, 19882588), (2, 9941294), (4, 4970647), (11, 1807508), (17, 1169564), (19, 1046452), (22, 903754), (34, 584782), (38, 523226), (44, 451877), (68, 292391), (76, 261613), (187, 106324), (209, 95132), (323, 61556), (374, 53162), (418, 47566), (646, 30778), (748, 26581), (836, 23783), (1292, 15389), (1399, 14212), (2798, 7106), (3553, 5596)]