19811916

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4201}}^1$

素因数の和:4342

約数の個数: 36

約数和(自身を含む): 50474424

約数和(自身を除く): 30662508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4201, 4716, 8402, 12603, 16804, 25206, 37809, 50412, 75618, 151236, 550331, 1100662, 1650993, 2201324, 3301986, 4952979, 6603972, 9905958, 19811916]

約数ペア:

[(1, 19811916), (2, 9905958), (3, 6603972), (4, 4952979), (6, 3301986), (9, 2201324), (12, 1650993), (18, 1100662), (36, 550331), (131, 151236), (262, 75618), (393, 50412), (524, 37809), (786, 25206), (1179, 16804), (1572, 12603), (2358, 8402), (4201, 4716)]