51917931

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 84389760

約数和(自身を除く): 32471829

約数列:

[1, 3, 9, 13, 39, 41, 79, 117, 123, 137, 237, 369, 411, 533, 711, 1027, 1233, 1599, 1781, 3081, 3239, 4797, 5343, 5617, 9243, 9717, 10823, 16029, 16851, 29151, 32469, 42107, 50553, 73021, 97407, 126321, 140699, 219063, 378963, 422097, 443743, 657189, 1266291, 1331229, 3993687, 5768659, 17305977, 51917931]

約数ペア:

[(1, 51917931), (3, 17305977), (9, 5768659), (13, 3993687), (39, 1331229), (41, 1266291), (79, 657189), (117, 443743), (123, 422097), (137, 378963), (237, 219063), (369, 140699), (411, 126321), (533, 97407), (711, 73021), (1027, 50553), (1233, 42107), (1599, 32469), (1781, 29151), (3081, 16851), (3239, 16029), (4797, 10823), (5343, 9717), (5617, 9243)]