21334565

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4091}}^1$

素因数の和:4252

約数の個数: 16

約数和(自身を含む): 29462400

約数和(自身を除く): 8127835

約数列:

[1, 5, 7, 35, 149, 745, 1043, 4091, 5215, 20455, 28637, 143185, 609559, 3047795, 4266913, 21334565]

約数ペア:

[(1, 21334565), (5, 4266913), (7, 3047795), (35, 609559), (149, 143185), (745, 28637), (1043, 20455), (4091, 5215)]