21437722

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{1019}}^1$

素因数の和:1245

約数の個数: 16

約数和(自身を含む): 32876640

約数和(自身を除く): 11438918

約数列:

[1, 2, 67, 134, 157, 314, 1019, 2038, 10519, 21038, 68273, 136546, 159983, 319966, 10718861, 21437722]

約数ペア:

[(1, 21437722), (2, 10718861), (67, 319966), (134, 159983), (157, 136546), (314, 68273), (1019, 21038), (2038, 10519)]