18705994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2333}}^1$

素因数の和:2565

約数の個数: 16

約数和(自身を含む): 29688480

約数和(自身を除く): 10982486

約数列:

[1, 2, 19, 38, 211, 422, 2333, 4009, 4666, 8018, 44327, 88654, 492263, 984526, 9352997, 18705994]

約数ペア:

[(1, 18705994), (2, 9352997), (19, 984526), (38, 492263), (211, 88654), (422, 44327), (2333, 8018), (4009, 4666)]