20453918

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2551}}^1$

素因数の和:2783

約数の個数: 16

約数和(自身を含む): 32461440

約数和(自身を除く): 12007522

約数列:

[1, 2, 19, 38, 211, 422, 2551, 4009, 5102, 8018, 48469, 96938, 538261, 1076522, 10226959, 20453918]

約数ペア:

[(1, 20453918), (2, 10226959), (19, 1076522), (38, 538261), (211, 96938), (422, 48469), (2551, 8018), (4009, 5102)]