21052560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87719}}^1$

素因数の和:87735

約数の個数: 40

約数和(自身を含む): 65263680

約数和(自身を除く): 44211120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87719, 175438, 263157, 350876, 438595, 526314, 701752, 877190, 1052628, 1315785, 1403504, 1754380, 2105256, 2631570, 3508760, 4210512, 5263140, 7017520, 10526280, 21052560]

約数ペア:

[(1, 21052560), (2, 10526280), (3, 7017520), (4, 5263140), (5, 4210512), (6, 3508760), (8, 2631570), (10, 2105256), (12, 1754380), (15, 1403504), (16, 1315785), (20, 1052628), (24, 877190), (30, 701752), (40, 526314), (48, 438595), (60, 350876), (80, 263157), (120, 175438), (240, 87719)]