21106055

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 28339200

約数和(自身を除く): 7233145

約数列:

[1, 5, 19, 29, 47, 95, 145, 163, 235, 551, 815, 893, 1363, 2755, 3097, 4465, 4727, 6815, 7661, 15485, 23635, 25897, 38305, 89813, 129485, 145559, 222169, 449065, 727795, 1110845, 4221211, 21106055]

約数ペア:

[(1, 21106055), (5, 4221211), (19, 1110845), (29, 727795), (47, 449065), (95, 222169), (145, 145559), (163, 129485), (235, 89813), (551, 38305), (815, 25897), (893, 23635), (1363, 15485), (2755, 7661), (3097, 6815), (4465, 4727)]