20210803695

素因数分解:

$3^4\times 5^1\times {\mathrm{2857}}^1\times {\mathrm{17467}}^1$

素因数の和:20341

約数の個数: 40

約数和(自身を含む): 36244492944

約数和(自身を除く): 16033689249

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2857, 8571, 14285, 17467, 25713, 42855, 52401, 77139, 87335, 128565, 157203, 231417, 262005, 385695, 471609, 786015, 1157085, 1414827, 2358045, 7074135, 49903219, 149709657, 249516095, 449128971, 748548285, 1347386913, 2245644855, 4042160739, 6736934565, 20210803695]

約数ペア:

[(1, 20210803695), (3, 6736934565), (5, 4042160739), (9, 2245644855), (15, 1347386913), (27, 748548285), (45, 449128971), (81, 249516095), (135, 149709657), (405, 49903219), (2857, 7074135), (8571, 2358045), (14285, 1414827), (17467, 1157085), (25713, 786015), (42855, 471609), (52401, 385695), (77139, 262005), (87335, 231417), (128565, 157203)]