20211085251

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{81569}}^1$

素因数の和:81630

約数の個数: 80

約数和(自身を含む): 37900684800

約数和(自身を除く): 17689599549

約数列:

[1, 3, 7, 9, 19, 21, 23, 27, 57, 63, 69, 81, 133, 161, 171, 189, 207, 399, 437, 483, 513, 567, 621, 1197, 1311, 1449, 1539, 1863, 3059, 3591, 3933, 4347, 9177, 10773, 11799, 13041, 27531, 35397, 81569, 82593, 244707, 247779, 570983, 734121, 1549811, 1712949, 1876087, 2202363, 4649433, 5138847, 5628261, 6607089, 10848677, 13132609, 13948299, 15416541, 16884783, 32546031, 35645653, 39397827, 41844897, 46249623, 50654349, 97638093, 106936959, 118193481, 125534691, 151963047, 249519571, 292914279, 320810877, 354580443, 748558713, 878742837, 962432631, 1063741329, 2245676139, 2887297893, 6737028417, 20211085251]

約数ペア:

[(1, 20211085251), (3, 6737028417), (7, 2887297893), (9, 2245676139), (19, 1063741329), (21, 962432631), (23, 878742837), (27, 748558713), (57, 354580443), (63, 320810877), (69, 292914279), (81, 249519571), (133, 151963047), (161, 125534691), (171, 118193481), (189, 106936959), (207, 97638093), (399, 50654349), (437, 46249623), (483, 41844897), (513, 39397827), (567, 35645653), (621, 32546031), (1197, 16884783), (1311, 15416541), (1449, 13948299), (1539, 13132609), (1863, 10848677), (3059, 6607089), (3591, 5628261), (3933, 5138847), (4347, 4649433), (9177, 2202363), (10773, 1876087), (11799, 1712949), (13041, 1549811), (27531, 734121), (35397, 570983), (81569, 247779), (82593, 244707)]