8904987

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 16144128

約数和(自身を除く): 7239141

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 83, 91, 117, 131, 249, 273, 393, 581, 747, 819, 917, 1079, 1179, 1703, 1743, 2751, 3237, 5109, 5229, 7553, 8253, 9711, 10873, 11921, 15327, 22659, 32619, 35763, 67977, 76111, 97857, 107289, 141349, 228333, 424047, 684999, 989443, 1272141, 2968329, 8904987]

約数ペア:

[(1, 8904987), (3, 2968329), (7, 1272141), (9, 989443), (13, 684999), (21, 424047), (39, 228333), (63, 141349), (83, 107289), (91, 97857), (117, 76111), (131, 67977), (249, 35763), (273, 32619), (393, 22659), (581, 15327), (747, 11921), (819, 10873), (917, 9711), (1079, 8253), (1179, 7553), (1703, 5229), (1743, 5109), (2751, 3237)]