17718831

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 29352960

約数和(自身を除く): 11634129

約数列:

[1, 3, 9, 13, 27, 39, 71, 79, 81, 117, 213, 237, 243, 351, 639, 711, 923, 1027, 1053, 1917, 2133, 2769, 3081, 3159, 5609, 5751, 6399, 8307, 9243, 16827, 17253, 19197, 24921, 27729, 50481, 72917, 74763, 83187, 151443, 218751, 224289, 249561, 454329, 656253, 1362987, 1968759, 5906277, 17718831]

約数ペア:

[(1, 17718831), (3, 5906277), (9, 1968759), (13, 1362987), (27, 656253), (39, 454329), (71, 249561), (79, 224289), (81, 218751), (117, 151443), (213, 83187), (237, 74763), (243, 72917), (351, 50481), (639, 27729), (711, 24921), (923, 19197), (1027, 17253), (1053, 16827), (1917, 9243), (2133, 8307), (2769, 6399), (3081, 5751), (3159, 5609)]