20535816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{487}}^1$

素因数の和:754

約数の個数: 64

約数和(自身を含む): 59028480

約数和(自身を除く): 38492664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 251, 487, 502, 753, 974, 1004, 1461, 1506, 1757, 1948, 2008, 2922, 3012, 3409, 3514, 3896, 5271, 5844, 6024, 6818, 7028, 10227, 10542, 11688, 13636, 14056, 20454, 21084, 27272, 40908, 42168, 81816, 122237, 244474, 366711, 488948, 733422, 855659, 977896, 1466844, 1711318, 2566977, 2933688, 3422636, 5133954, 6845272, 10267908, 20535816]

約数ペア:

[(1, 20535816), (2, 10267908), (3, 6845272), (4, 5133954), (6, 3422636), (7, 2933688), (8, 2566977), (12, 1711318), (14, 1466844), (21, 977896), (24, 855659), (28, 733422), (42, 488948), (56, 366711), (84, 244474), (168, 122237), (251, 81816), (487, 42168), (502, 40908), (753, 27272), (974, 21084), (1004, 20454), (1461, 14056), (1506, 13636), (1757, 11688), (1948, 10542), (2008, 10227), (2922, 7028), (3012, 6818), (3409, 6024), (3514, 5844), (3896, 5271)]