21790494719

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1228949}}^1$

素因数の和:1229122

約数の個数: 16

約数和(自身を含む): 26545320000

約数和(自身を除く): 4754825281

約数列:

[1, 7, 17, 119, 149, 1043, 2533, 17731, 1228949, 8602643, 20892133, 146244931, 183113401, 1281793807, 3112927817, 21790494719]

約数ペア:

[(1, 21790494719), (7, 3112927817), (17, 1281793807), (119, 183113401), (149, 146244931), (1043, 20892133), (2533, 8602643), (17731, 1228949)]