420856569

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{15217}}^1$

素因数の和:15669

約数の個数: 24

約数和(自身を含む): 696375680

約数和(自身を除く): 275519111

約数列:

[1, 3, 7, 9, 21, 63, 439, 1317, 3073, 3951, 9219, 15217, 27657, 45651, 106519, 136953, 319557, 958671, 6680263, 20040789, 46761841, 60122367, 140285523, 420856569]

約数ペア:

[(1, 420856569), (3, 140285523), (7, 60122367), (9, 46761841), (21, 20040789), (63, 6680263), (439, 958671), (1317, 319557), (3073, 136953), (3951, 106519), (9219, 45651), (15217, 27657)]