21305085

素因数分解:

$3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{6257}}^1$

素因数の和:6492

約数の個数: 16

約数和(自身を含む): 34243776

約数和(自身を除く): 12938691

約数列:

[1, 3, 5, 15, 227, 681, 1135, 3405, 6257, 18771, 31285, 93855, 1420339, 4261017, 7101695, 21305085]

約数ペア:

[(1, 21305085), (3, 7101695), (5, 4261017), (15, 1420339), (227, 93855), (681, 31285), (1135, 18771), (3405, 6257)]