199361718

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{20101}}^1$

素因数の和:20157

約数の個数: 48

約数和(自身を含む): 470386800

約数和(自身を除く): 271025082

約数列:

[1, 2, 3, 6, 9, 18, 19, 29, 38, 57, 58, 87, 114, 171, 174, 261, 342, 522, 551, 1102, 1653, 3306, 4959, 9918, 20101, 40202, 60303, 120606, 180909, 361818, 381919, 582929, 763838, 1145757, 1165858, 1748787, 2291514, 3437271, 3497574, 5246361, 6874542, 10492722, 11075651, 22151302, 33226953, 66453906, 99680859, 199361718]

約数ペア:

[(1, 199361718), (2, 99680859), (3, 66453906), (6, 33226953), (9, 22151302), (18, 11075651), (19, 10492722), (29, 6874542), (38, 5246361), (57, 3497574), (58, 3437271), (87, 2291514), (114, 1748787), (171, 1165858), (174, 1145757), (261, 763838), (342, 582929), (522, 381919), (551, 361818), (1102, 180909), (1653, 120606), (3306, 60303), (4959, 40202), (9918, 20101)]