21310816

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:527

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 22930304

約数列:

[1, 2, 4, 8, 16, 32, 37, 41, 74, 82, 148, 164, 296, 328, 439, 592, 656, 878, 1184, 1312, 1517, 1756, 3034, 3512, 6068, 7024, 12136, 14048, 16243, 17999, 24272, 32486, 35998, 48544, 64972, 71996, 129944, 143992, 259888, 287984, 519776, 575968, 665963, 1331926, 2663852, 5327704, 10655408, 21310816]

約数ペア:

[(1, 21310816), (2, 10655408), (4, 5327704), (8, 2663852), (16, 1331926), (32, 665963), (37, 575968), (41, 519776), (74, 287984), (82, 259888), (148, 143992), (164, 129944), (296, 71996), (328, 64972), (439, 48544), (592, 35998), (656, 32486), (878, 24272), (1184, 17999), (1312, 16243), (1517, 14048), (1756, 12136), (3034, 7024), (3512, 6068)]