21528494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{919}}^1$

素因数の和:1004

約数の個数: 32

約数和(自身を含む): 37558080

約数和(自身を除く): 16029586

約数列:

[1, 2, 13, 17, 26, 34, 53, 106, 221, 442, 689, 901, 919, 1378, 1802, 1838, 11713, 11947, 15623, 23426, 23894, 31246, 48707, 97414, 203099, 406198, 633191, 828019, 1266382, 1656038, 10764247, 21528494]

約数ペア:

[(1, 21528494), (2, 10764247), (13, 1656038), (17, 1266382), (26, 828019), (34, 633191), (53, 406198), (106, 203099), (221, 97414), (442, 48707), (689, 31246), (901, 23894), (919, 23426), (1378, 15623), (1802, 11947), (1838, 11713)]