20197695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1291}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 37209600

約数和(自身を除く): 17011905

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 149, 447, 745, 1043, 1291, 2235, 3129, 3873, 5215, 6455, 9037, 15645, 19365, 27111, 45185, 135555, 192359, 577077, 961795, 1346513, 2885385, 4039539, 6732565, 20197695]

約数ペア:

[(1, 20197695), (3, 6732565), (5, 4039539), (7, 2885385), (15, 1346513), (21, 961795), (35, 577077), (105, 192359), (149, 135555), (447, 45185), (745, 27111), (1043, 19365), (1291, 15645), (2235, 9037), (3129, 6455), (3873, 5215)]