21316048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102481}}^1$

素因数の和:102502

約数の個数: 20

約数和(自身を含む): 44477188

約数和(自身を除く): 23161140

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102481, 204962, 409924, 819848, 1332253, 1639696, 2664506, 5329012, 10658024, 21316048]

約数ペア:

[(1, 21316048), (2, 10658024), (4, 5329012), (8, 2664506), (13, 1639696), (16, 1332253), (26, 819848), (52, 409924), (104, 204962), (208, 102481)]