21196005

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 35188608

約数和(自身を除く): 13992603

約数列:

[1, 3, 5, 15, 37, 111, 181, 185, 211, 543, 555, 633, 905, 1055, 2715, 3165, 6697, 7807, 20091, 23421, 33485, 38191, 39035, 100455, 114573, 117105, 190955, 572865, 1413067, 4239201, 7065335, 21196005]

約数ペア:

[(1, 21196005), (3, 7065335), (5, 4239201), (15, 1413067), (37, 572865), (111, 190955), (181, 117105), (185, 114573), (211, 100455), (543, 39035), (555, 38191), (633, 33485), (905, 23421), (1055, 20091), (2715, 7807), (3165, 6697)]