18372715

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 24494400

約数和(自身を除く): 6121685

約数列:

[1, 5, 19, 41, 53, 89, 95, 205, 265, 445, 779, 1007, 1691, 2173, 3649, 3895, 4717, 5035, 8455, 10865, 18245, 23585, 41287, 69331, 89623, 193397, 206435, 346655, 448115, 966985, 3674543, 18372715]

約数ペア:

[(1, 18372715), (5, 3674543), (19, 966985), (41, 448115), (53, 346655), (89, 206435), (95, 193397), (205, 89623), (265, 69331), (445, 41287), (779, 23585), (1007, 18245), (1691, 10865), (2173, 8455), (3649, 5035), (3895, 4717)]