19908086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 34715520

約数和(自身を除く): 14807434

約数列:

[1, 2, 11, 19, 22, 38, 97, 194, 209, 418, 491, 982, 1067, 1843, 2134, 3686, 5401, 9329, 10802, 18658, 20273, 40546, 47627, 95254, 102619, 205238, 523897, 904913, 1047794, 1809826, 9954043, 19908086]

約数ペア:

[(1, 19908086), (2, 9954043), (11, 1809826), (19, 1047794), (22, 904913), (38, 523897), (97, 205238), (194, 102619), (209, 95254), (418, 47627), (491, 40546), (982, 20273), (1067, 18658), (1843, 10802), (2134, 9329), (3686, 5401)]