21103898

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1\times {\mathrm{449}}^1$

素因数の和:853

約数の個数: 16

約数和(自身を含む): 32270400

約数和(自身を除く): 11166502

約数列:

[1, 2, 71, 142, 331, 449, 662, 898, 23501, 31879, 47002, 63758, 148619, 297238, 10551949, 21103898]

約数ペア:

[(1, 21103898), (2, 10551949), (71, 297238), (142, 148619), (331, 63758), (449, 47002), (662, 31879), (898, 23501)]