31399641

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5477}}^1$

素因数の和:5510

約数の個数: 36

約数和(自身を含む): 56828772

約数和(自身を除く): 25429131

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 5477, 5733, 16431, 38339, 49293, 71201, 115017, 213603, 268373, 345051, 498407, 640809, 805119, 1495221, 2415357, 3488849, 4485663, 10466547, 31399641]

約数ペア:

[(1, 31399641), (3, 10466547), (7, 4485663), (9, 3488849), (13, 2415357), (21, 1495221), (39, 805119), (49, 640809), (63, 498407), (91, 345051), (117, 268373), (147, 213603), (273, 115017), (441, 71201), (637, 49293), (819, 38339), (1911, 16431), (5477, 5733)]