19913145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3109}}^1$

素因数の和:3185

約数の個数: 32

約数和(自身を含む): 37021440

約数和(自身を除く): 17108295

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3109, 6405, 9327, 15545, 21763, 46635, 65289, 108815, 189649, 326445, 568947, 948245, 1327543, 2844735, 3982629, 6637715, 19913145]

約数ペア:

[(1, 19913145), (3, 6637715), (5, 3982629), (7, 2844735), (15, 1327543), (21, 948245), (35, 568947), (61, 326445), (105, 189649), (183, 108815), (305, 65289), (427, 46635), (915, 21763), (1281, 15545), (2135, 9327), (3109, 6405)]