21163893

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1624

約数の個数: 16

約数和(自身を含む): 29062656

約数和(自身を除く): 7898763

約数列:

[1, 3, 67, 71, 201, 213, 1483, 4449, 4757, 14271, 99361, 105293, 298083, 315879, 7054631, 21163893]

約数ペア:

[(1, 21163893), (3, 7054631), (67, 315879), (71, 298083), (201, 105293), (213, 99361), (1483, 14271), (4449, 4757)]