20785194

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 48372480

約数和(自身を除く): 27587286

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 101, 103, 111, 202, 206, 222, 303, 309, 333, 606, 618, 666, 909, 927, 999, 1818, 1854, 1998, 2727, 2781, 3737, 3811, 5454, 5562, 7474, 7622, 10403, 11211, 11433, 20806, 22422, 22866, 31209, 33633, 34299, 62418, 67266, 68598, 93627, 100899, 102897, 187254, 201798, 205794, 280881, 384911, 561762, 769822, 1154733, 2309466, 3464199, 6928398, 10392597, 20785194]

約数ペア:

[(1, 20785194), (2, 10392597), (3, 6928398), (6, 3464199), (9, 2309466), (18, 1154733), (27, 769822), (37, 561762), (54, 384911), (74, 280881), (101, 205794), (103, 201798), (111, 187254), (202, 102897), (206, 100899), (222, 93627), (303, 68598), (309, 67266), (333, 62418), (606, 34299), (618, 33633), (666, 31209), (909, 22866), (927, 22422), (999, 20806), (1818, 11433), (1854, 11211), (1998, 10403), (2727, 7622), (2781, 7474), (3737, 5562), (3811, 5454)]