21542703

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11273}}^1$

素因数の和:11303

約数の個数: 24

約数和(自身を含む): 35986608

約数和(自身を除く): 14443905

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11273, 33819, 78911, 146549, 236733, 439647, 552377, 1025843, 1657131, 3077529, 7180901, 21542703]

約数ペア:

[(1, 21542703), (3, 7180901), (7, 3077529), (13, 1657131), (21, 1025843), (39, 552377), (49, 439647), (91, 236733), (147, 146549), (273, 78911), (637, 33819), (1911, 11273)]