21434517

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{773}}^1$

素因数の和:874

約数の個数: 32

約数和(自身を含む): 34675200

約数和(自身を除く): 13240683

約数列:

[1, 3, 9, 13, 27, 39, 79, 117, 237, 351, 711, 773, 1027, 2133, 2319, 3081, 6957, 9243, 10049, 20871, 27729, 30147, 61067, 90441, 183201, 271323, 549603, 793871, 1648809, 2381613, 7144839, 21434517]

約数ペア:

[(1, 21434517), (3, 7144839), (9, 2381613), (13, 1648809), (27, 793871), (39, 549603), (79, 271323), (117, 183201), (237, 90441), (351, 61067), (711, 30147), (773, 27729), (1027, 20871), (2133, 10049), (2319, 9243), (3081, 6957)]