21249777

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{769}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 29025920

約数和(自身を除く): 7776143

約数列:

[1, 3, 61, 151, 183, 453, 769, 2307, 9211, 27633, 46909, 116119, 140727, 348357, 7083259, 21249777]

約数ペア:

[(1, 21249777), (3, 7083259), (61, 348357), (151, 140727), (183, 116119), (453, 46909), (769, 27633), (2307, 9211)]