18420386

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:894

約数の個数: 24

約数和(自身を含む): 30138624

約数和(自身を除く): 11718238

約数列:

[1, 2, 19, 31, 38, 62, 361, 589, 722, 823, 1178, 1646, 11191, 15637, 22382, 25513, 31274, 51026, 297103, 484747, 594206, 969494, 9210193, 18420386]

約数ペア:

[(1, 18420386), (2, 9210193), (19, 969494), (31, 594206), (38, 484747), (62, 297103), (361, 51026), (589, 31274), (722, 25513), (823, 22382), (1178, 15637), (1646, 11191)]