18181695

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{853}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 35048160

約数和(自身を除く): 16866465

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 435, 609, 735, 853, 1015, 1421, 2559, 3045, 4263, 4265, 5971, 7105, 12795, 17913, 21315, 24737, 29855, 41797, 74211, 89565, 123685, 125391, 173159, 208985, 371055, 519477, 626955, 865795, 1212113, 2597385, 3636339, 6060565, 18181695]

約数ペア:

[(1, 18181695), (3, 6060565), (5, 3636339), (7, 2597385), (15, 1212113), (21, 865795), (29, 626955), (35, 519477), (49, 371055), (87, 208985), (105, 173159), (145, 125391), (147, 123685), (203, 89565), (245, 74211), (435, 41797), (609, 29855), (735, 24737), (853, 21315), (1015, 17913), (1421, 12795), (2559, 7105), (3045, 5971), (4263, 4265)]