19988730621

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{1021}}^1\times {\mathrm{32467}}^1$

素因数の和:33561

約数の個数: 24

約数和(自身を含む): 29333149664

約数和(自身を除く): 9344419043

約数列:

[1, 3, 9, 67, 201, 603, 1021, 3063, 9189, 32467, 68407, 97401, 205221, 292203, 615663, 2175289, 6525867, 19577601, 33148807, 99446421, 298339263, 2220970069, 6662910207, 19988730621]

約数ペア:

[(1, 19988730621), (3, 6662910207), (9, 2220970069), (67, 298339263), (201, 99446421), (603, 33148807), (1021, 19577601), (3063, 6525867), (9189, 2175289), (32467, 615663), (68407, 292203), (97401, 205221)]