20811602

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{607}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 37355520

約数和(自身を除く): 16543918

約数列:

[1, 2, 7, 14, 31, 62, 79, 158, 217, 434, 553, 607, 1106, 1214, 2449, 4249, 4898, 8498, 17143, 18817, 34286, 37634, 47953, 95906, 131719, 263438, 335671, 671342, 1486543, 2973086, 10405801, 20811602]

約数ペア:

[(1, 20811602), (2, 10405801), (7, 2973086), (14, 1486543), (31, 671342), (62, 335671), (79, 263438), (158, 131719), (217, 95906), (434, 47953), (553, 37634), (607, 34286), (1106, 18817), (1214, 17143), (2449, 8498), (4249, 4898)]