19818704

素因数分解:

$2^4\times {\mathrm{1103}}^1\times {\mathrm{1123}}^1$

素因数の和:2234

約数の個数: 20

約数和(自身を含む): 38467776

約数和(自身を除く): 18649072

約数列:

[1, 2, 4, 8, 16, 1103, 1123, 2206, 2246, 4412, 4492, 8824, 8984, 17648, 17968, 1238669, 2477338, 4954676, 9909352, 19818704]

約数ペア:

[(1, 19818704), (2, 9909352), (4, 4954676), (8, 2477338), (16, 1238669), (1103, 17968), (1123, 17648), (2206, 8984), (2246, 8824), (4412, 4492)]