21374560

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1297}}^1$

素因数の和:1415

約数の個数: 48

約数和(自身を含む): 51026976

約数和(自身を除く): 29652416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1297, 1648, 2060, 2594, 3296, 4120, 5188, 6485, 8240, 10376, 12970, 16480, 20752, 25940, 41504, 51880, 103760, 133591, 207520, 267182, 534364, 667955, 1068728, 1335910, 2137456, 2671820, 4274912, 5343640, 10687280, 21374560]

約数ペア:

[(1, 21374560), (2, 10687280), (4, 5343640), (5, 4274912), (8, 2671820), (10, 2137456), (16, 1335910), (20, 1068728), (32, 667955), (40, 534364), (80, 267182), (103, 207520), (160, 133591), (206, 103760), (412, 51880), (515, 41504), (824, 25940), (1030, 20752), (1297, 16480), (1648, 12970), (2060, 10376), (2594, 8240), (3296, 6485), (4120, 5188)]