18888984

素因数分解:

$2^3\times 3^3\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 52898400

約数和(自身を除く): 34009416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 157, 216, 314, 471, 557, 628, 942, 1114, 1256, 1413, 1671, 1884, 2228, 2826, 3342, 3768, 4239, 4456, 5013, 5652, 6684, 8478, 10026, 11304, 13368, 15039, 16956, 20052, 30078, 33912, 40104, 60156, 87449, 120312, 174898, 262347, 349796, 524694, 699592, 787041, 1049388, 1574082, 2098776, 2361123, 3148164, 4722246, 6296328, 9444492, 18888984]

約数ペア:

[(1, 18888984), (2, 9444492), (3, 6296328), (4, 4722246), (6, 3148164), (8, 2361123), (9, 2098776), (12, 1574082), (18, 1049388), (24, 787041), (27, 699592), (36, 524694), (54, 349796), (72, 262347), (108, 174898), (157, 120312), (216, 87449), (314, 60156), (471, 40104), (557, 33912), (628, 30078), (942, 20052), (1114, 16956), (1256, 15039), (1413, 13368), (1671, 11304), (1884, 10026), (2228, 8478), (2826, 6684), (3342, 5652), (3768, 5013), (4239, 4456)]