21954080

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3191}}^1$

素因数の和:3249

約数の個数: 48

約数和(自身を含む): 53089344

約数和(自身を除く): 31135264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3191, 3440, 6382, 6880, 12764, 15955, 25528, 31910, 51056, 63820, 102112, 127640, 137213, 255280, 274426, 510560, 548852, 686065, 1097704, 1372130, 2195408, 2744260, 4390816, 5488520, 10977040, 21954080]

約数ペア:

[(1, 21954080), (2, 10977040), (4, 5488520), (5, 4390816), (8, 2744260), (10, 2195408), (16, 1372130), (20, 1097704), (32, 686065), (40, 548852), (43, 510560), (80, 274426), (86, 255280), (160, 137213), (172, 127640), (215, 102112), (344, 63820), (430, 51056), (688, 31910), (860, 25528), (1376, 15955), (1720, 12764), (3191, 6880), (3440, 6382)]