220048478

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{21001}}^1$

素因数の和:21060

約数の個数: 24

約数和(自身を含む): 368963136

約数和(自身を除く): 148914658

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 403, 806, 5239, 10478, 21001, 42002, 273013, 546026, 651031, 1302062, 3549169, 7098338, 8463403, 16926806, 110024239, 220048478]

約数ペア:

[(1, 220048478), (2, 110024239), (13, 16926806), (26, 8463403), (31, 7098338), (62, 3549169), (169, 1302062), (338, 651031), (403, 546026), (806, 273013), (5239, 42002), (10478, 21001)]