7778979

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3911}}^1$

素因数の和:3947

約数の個数: 24

約数和(自身を含む): 12815712

約数和(自身を除く): 5036733

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 3911, 11733, 35199, 50843, 66487, 152529, 199461, 457587, 598383, 864331, 2592993, 7778979]

約数ペア:

[(1, 7778979), (3, 2592993), (9, 864331), (13, 598383), (17, 457587), (39, 199461), (51, 152529), (117, 66487), (153, 50843), (221, 35199), (663, 11733), (1989, 3911)]