163980117

素因数分解:

$3^2\times 7^2\times {\mathrm{371837}}^1$

素因数の和:371857

約数の個数: 18

約数和(自身を含む): 275531958

約数和(自身を除く): 111551841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 371837, 1115511, 2602859, 3346533, 7808577, 18220013, 23425731, 54660039, 163980117]

約数ペア:

[(1, 163980117), (3, 54660039), (7, 23425731), (9, 18220013), (21, 7808577), (49, 3346533), (63, 2602859), (147, 1115511), (441, 371837)]