21442057

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 27550152

約数和(自身を除く): 6108095

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 821, 2009, 3731, 5747, 10673, 26117, 33661, 40229, 74711, 235627, 437593, 522977, 1649389, 3063151, 21442057]

約数ペア:

[(1, 21442057), (7, 3063151), (13, 1649389), (41, 522977), (49, 437593), (91, 235627), (287, 74711), (533, 40229), (637, 33661), (821, 26117), (2009, 10673), (3731, 5747)]