221020485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{123821}}^1$

素因数の和:123853

約数の個数: 32

約数和(自身を含む): 427928832

約数和(自身を除く): 206908347

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 123821, 371463, 619105, 866747, 1857315, 2104957, 2600241, 4333735, 6314871, 10524785, 13001205, 14734699, 31574355, 44204097, 73673495, 221020485]

約数ペア:

[(1, 221020485), (3, 73673495), (5, 44204097), (7, 31574355), (15, 14734699), (17, 13001205), (21, 10524785), (35, 6314871), (51, 4333735), (85, 2600241), (105, 2104957), (119, 1857315), (255, 866747), (357, 619105), (595, 371463), (1785, 123821)]