21565672

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1777}}^1$

素因数の和:1861

約数の個数: 32

約数和(自身を含む): 42565320

約数和(自身を除く): 20999648

約数列:

[1, 2, 4, 8, 37, 41, 74, 82, 148, 164, 296, 328, 1517, 1777, 3034, 3554, 6068, 7108, 12136, 14216, 65749, 72857, 131498, 145714, 262996, 291428, 525992, 582856, 2695709, 5391418, 10782836, 21565672]

約数ペア:

[(1, 21565672), (2, 10782836), (4, 5391418), (8, 2695709), (37, 582856), (41, 525992), (74, 291428), (82, 262996), (148, 145714), (164, 131498), (296, 72857), (328, 65749), (1517, 14216), (1777, 12136), (3034, 7108), (3554, 6068)]