21328897

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 23514624

約数和(自身を除く): 2185727

約数列:

[1, 17, 41, 71, 431, 697, 1207, 2911, 7327, 17671, 30601, 49487, 300407, 520217, 1254641, 21328897]

約数ペア:

[(1, 21328897), (17, 1254641), (41, 520217), (71, 300407), (431, 49487), (697, 30601), (1207, 17671), (2911, 7327)]