18871827

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{5437}}^1$

素因数の和:5542

約数の個数: 16

約数和(自身を含む): 27407520

約数和(自身を除く): 8535693

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 5437, 16311, 70681, 212043, 483893, 1451679, 6290609, 18871827]

約数ペア:

[(1, 18871827), (3, 6290609), (13, 1451679), (39, 483893), (89, 212043), (267, 70681), (1157, 16311), (3471, 5437)]