21907884

素因数分解:

$2^2\times 3^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 52587360

約数和(自身を除く): 30679476

約数列:

[1, 2, 3, 4, 6, 12, 73, 89, 146, 178, 219, 267, 281, 292, 356, 438, 534, 562, 843, 876, 1068, 1124, 1686, 3372, 6497, 12994, 19491, 20513, 25009, 25988, 38982, 41026, 50018, 61539, 75027, 77964, 82052, 100036, 123078, 150054, 246156, 300108, 1825657, 3651314, 5476971, 7302628, 10953942, 21907884]

約数ペア:

[(1, 21907884), (2, 10953942), (3, 7302628), (4, 5476971), (6, 3651314), (12, 1825657), (73, 300108), (89, 246156), (146, 150054), (178, 123078), (219, 100036), (267, 82052), (281, 77964), (292, 75027), (356, 61539), (438, 50018), (534, 41026), (562, 38982), (843, 25988), (876, 25009), (1068, 20513), (1124, 19491), (1686, 12994), (3372, 6497)]