21541500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4787}}^1$

素因数の和:4812

約数の個数: 72

約数和(自身を含む): 67970448

約数和(自身を除く): 46428948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4787, 9574, 14361, 19148, 23935, 28722, 43083, 47870, 57444, 71805, 86166, 95740, 119675, 143610, 172332, 215415, 239350, 287220, 359025, 430830, 478700, 598375, 718050, 861660, 1077075, 1196750, 1436100, 1795125, 2154150, 2393500, 3590250, 4308300, 5385375, 7180500, 10770750, 21541500]

約数ペア:

[(1, 21541500), (2, 10770750), (3, 7180500), (4, 5385375), (5, 4308300), (6, 3590250), (9, 2393500), (10, 2154150), (12, 1795125), (15, 1436100), (18, 1196750), (20, 1077075), (25, 861660), (30, 718050), (36, 598375), (45, 478700), (50, 430830), (60, 359025), (75, 287220), (90, 239350), (100, 215415), (125, 172332), (150, 143610), (180, 119675), (225, 95740), (250, 86166), (300, 71805), (375, 57444), (450, 47870), (500, 43083), (750, 28722), (900, 23935), (1125, 19148), (1500, 14361), (2250, 9574), (4500, 4787)]