216320685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{55681}}^1$

素因数の和:55733

約数の個数: 32

約数和(自身を含む): 406255872

約数和(自身を除く): 189935187

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 55681, 167043, 278405, 389767, 835215, 1169301, 1948835, 2060197, 5846505, 6180591, 10300985, 14421379, 30902955, 43264137, 72106895, 216320685]

約数ペア:

[(1, 216320685), (3, 72106895), (5, 43264137), (7, 30902955), (15, 14421379), (21, 10300985), (35, 6180591), (37, 5846505), (105, 2060197), (111, 1948835), (185, 1169301), (259, 835215), (555, 389767), (777, 278405), (1295, 167043), (3885, 55681)]