21979958

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10979}}^1$

素因数の和:11012

約数の個数: 32

約数和(自身を含む): 44271360

約数和(自身を除く): 22291402

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 143, 154, 182, 286, 1001, 2002, 10979, 21958, 76853, 120769, 142727, 153706, 241538, 285454, 845383, 999089, 1569997, 1690766, 1998178, 3139994, 10989979, 21979958]

約数ペア:

[(1, 21979958), (2, 10989979), (7, 3139994), (11, 1998178), (13, 1690766), (14, 1569997), (22, 999089), (26, 845383), (77, 285454), (91, 241538), (143, 153706), (154, 142727), (182, 120769), (286, 76853), (1001, 21958), (2002, 10979)]