21678709

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:600

約数の個数: 16

約数和(自身を含む): 24237360

約数和(自身を除く): 2558651

約数列:

[1, 13, 41, 89, 457, 533, 1157, 3649, 5941, 18737, 40673, 47437, 243581, 528749, 1667593, 21678709]

約数ペア:

[(1, 21678709), (13, 1667593), (41, 528749), (89, 243581), (457, 47437), (533, 40673), (1157, 18737), (3649, 5941)]