19408641

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{11699}}^1$

素因数の和:11788

約数の個数: 16

約数和(自身を含む): 29952000

約数和(自身を除く): 10543359

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 11699, 35097, 81893, 245679, 924221, 2772663, 6469547, 19408641]

約数ペア:

[(1, 19408641), (3, 6469547), (7, 2772663), (21, 924221), (79, 245679), (237, 81893), (553, 35097), (1659, 11699)]