21361920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5563}}^1$

素因数の和:5587

約数の個数: 72

約数和(自身を含む): 68236896

約数和(自身を除く): 46874976

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, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5563, 11126, 16689, 22252, 27815, 33378, 44504, 55630, 66756, 83445, 89008, 111260, 133512, 166890, 178016, 222520, 267024, 333780, 356032, 445040, 534048, 667560, 712064, 890080, 1068096, 1335120, 1424128, 1780160, 2136192, 2670240, 3560320, 4272384, 5340480, 7120640, 10680960, 21361920]

約数ペア:

[(1, 21361920), (2, 10680960), (3, 7120640), (4, 5340480), (5, 4272384), (6, 3560320), (8, 2670240), (10, 2136192), (12, 1780160), (15, 1424128), (16, 1335120), (20, 1068096), (24, 890080), (30, 712064), (32, 667560), (40, 534048), (48, 445040), (60, 356032), (64, 333780), (80, 267024), (96, 222520), (120, 178016), (128, 166890), (160, 133512), (192, 111260), (240, 89008), (256, 83445), (320, 66756), (384, 55630), (480, 44504), (640, 33378), (768, 27815), (960, 22252), (1280, 16689), (1920, 11126), (3840, 5563)]