18613905

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 30689280

約数和(自身を除く): 12075375

約数列:

[1, 3, 5, 15, 73, 89, 191, 219, 267, 365, 445, 573, 955, 1095, 1335, 2865, 6497, 13943, 16999, 19491, 32485, 41829, 50997, 69715, 84995, 97455, 209145, 254985, 1240927, 3722781, 6204635, 18613905]

約数ペア:

[(1, 18613905), (3, 6204635), (5, 3722781), (15, 1240927), (73, 254985), (89, 209145), (191, 97455), (219, 84995), (267, 69715), (365, 50997), (445, 41829), (573, 32485), (955, 19491), (1095, 16999), (1335, 13943), (2865, 6497)]