21050550

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:555

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 38945610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 31, 45, 50, 54, 62, 75, 90, 93, 135, 150, 155, 186, 225, 270, 279, 310, 450, 465, 503, 558, 675, 775, 837, 930, 1006, 1350, 1395, 1509, 1550, 1674, 2325, 2515, 2790, 3018, 4185, 4527, 4650, 5030, 6975, 7545, 8370, 9054, 12575, 13581, 13950, 15090, 15593, 20925, 22635, 25150, 27162, 31186, 37725, 41850, 45270, 46779, 67905, 75450, 77965, 93558, 113175, 135810, 140337, 155930, 226350, 233895, 280674, 339525, 389825, 421011, 467790, 679050, 701685, 779650, 842022, 1169475, 1403370, 2105055, 2338950, 3508425, 4210110, 7016850, 10525275, 21050550]

約数ペア:

[(1, 21050550), (2, 10525275), (3, 7016850), (5, 4210110), (6, 3508425), (9, 2338950), (10, 2105055), (15, 1403370), (18, 1169475), (25, 842022), (27, 779650), (30, 701685), (31, 679050), (45, 467790), (50, 421011), (54, 389825), (62, 339525), (75, 280674), (90, 233895), (93, 226350), (135, 155930), (150, 140337), (155, 135810), (186, 113175), (225, 93558), (270, 77965), (279, 75450), (310, 67905), (450, 46779), (465, 45270), (503, 41850), (558, 37725), (675, 31186), (775, 27162), (837, 25150), (930, 22635), (1006, 20925), (1350, 15593), (1395, 15090), (1509, 13950), (1550, 13581), (1674, 12575), (2325, 9054), (2515, 8370), (2790, 7545), (3018, 6975), (4185, 5030), (4527, 4650)]