21270639

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{8941}}^1$

素因数の和:9018

約数の個数: 16

約数和(自身を含む): 31046624

約数和(自身を除く): 9775985

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 8941, 26823, 116233, 348699, 545401, 1636203, 7090213, 21270639]

約数ペア:

[(1, 21270639), (3, 7090213), (13, 1636203), (39, 545401), (61, 348699), (183, 116233), (793, 26823), (2379, 8941)]