21371520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11131}}^1$

素因数の和:11153

約数の個数: 64

約数和(自身を含む): 68127840

約数和(自身を除く): 46756320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 11131, 22262, 33393, 44524, 55655, 66786, 89048, 111310, 133572, 166965, 178096, 222620, 267144, 333930, 356192, 445240, 534288, 667860, 712384, 890480, 1068576, 1335720, 1424768, 1780960, 2137152, 2671440, 3561920, 4274304, 5342880, 7123840, 10685760, 21371520]

約数ペア:

[(1, 21371520), (2, 10685760), (3, 7123840), (4, 5342880), (5, 4274304), (6, 3561920), (8, 2671440), (10, 2137152), (12, 1780960), (15, 1424768), (16, 1335720), (20, 1068576), (24, 890480), (30, 712384), (32, 667860), (40, 534288), (48, 445240), (60, 356192), (64, 333930), (80, 267144), (96, 222620), (120, 178096), (128, 166965), (160, 133572), (192, 111310), (240, 89048), (320, 66786), (384, 55655), (480, 44524), (640, 33393), (960, 22262), (1920, 11131)]