18188871

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 26906880

約数和(自身を除く): 8718009

約数列:

[1, 3, 19, 41, 43, 57, 123, 129, 181, 543, 779, 817, 1763, 2337, 2451, 3439, 5289, 7421, 7783, 10317, 22263, 23349, 33497, 100491, 140999, 147877, 319103, 422997, 443631, 957309, 6062957, 18188871]

約数ペア:

[(1, 18188871), (3, 6062957), (19, 957309), (41, 443631), (43, 422997), (57, 319103), (123, 147877), (129, 140999), (181, 100491), (543, 33497), (779, 23349), (817, 22263), (1763, 10317), (2337, 7783), (2451, 7421), (3439, 5289)]