18860205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 38158848

約数和(自身を除く): 19298643

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 91, 105, 123, 195, 205, 273, 287, 337, 455, 533, 615, 861, 1011, 1365, 1435, 1599, 1685, 2359, 2665, 3731, 4305, 4381, 5055, 7077, 7995, 11193, 11795, 13143, 13817, 18655, 21905, 30667, 35385, 41451, 55965, 65715, 69085, 92001, 96719, 153335, 179621, 207255, 290157, 460005, 483595, 538863, 898105, 1257347, 1450785, 2694315, 3772041, 6286735, 18860205]

約数ペア:

[(1, 18860205), (3, 6286735), (5, 3772041), (7, 2694315), (13, 1450785), (15, 1257347), (21, 898105), (35, 538863), (39, 483595), (41, 460005), (65, 290157), (91, 207255), (105, 179621), (123, 153335), (195, 96719), (205, 92001), (273, 69085), (287, 65715), (337, 55965), (455, 41451), (533, 35385), (615, 30667), (861, 21905), (1011, 18655), (1365, 13817), (1435, 13143), (1599, 11795), (1685, 11193), (2359, 7995), (2665, 7077), (3731, 5055), (4305, 4381)]