20956977

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 31337280

約数和(自身を除く): 10380303

約数列:

[1, 3, 9, 59, 61, 177, 183, 531, 549, 647, 1941, 3599, 5823, 10797, 32391, 38173, 39467, 114519, 118401, 343557, 355203, 2328553, 6985659, 20956977]

約数ペア:

[(1, 20956977), (3, 6985659), (9, 2328553), (59, 355203), (61, 343557), (177, 118401), (183, 114519), (531, 39467), (549, 38173), (647, 32391), (1941, 10797), (3599, 5823)]