21573903

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{5477}}^1$

素因数の和:5594

約数の個数: 16

約数和(自身を含む): 31290336

約数和(自身を除く): 9716433

約数列:

[1, 3, 13, 39, 101, 303, 1313, 3939, 5477, 16431, 71201, 213603, 553177, 1659531, 7191301, 21573903]

約数ペア:

[(1, 21573903), (3, 7191301), (13, 1659531), (39, 553177), (101, 213603), (303, 71201), (1313, 16431), (3939, 5477)]