19773568

素因数分解:

$2^7\times {\mathrm{241}}^1\times {\mathrm{641}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 39617820

約数和(自身を除く): 19844252

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 241, 482, 641, 964, 1282, 1928, 2564, 3856, 5128, 7712, 10256, 15424, 20512, 30848, 41024, 82048, 154481, 308962, 617924, 1235848, 2471696, 4943392, 9886784, 19773568]

約数ペア:

[(1, 19773568), (2, 9886784), (4, 4943392), (8, 2471696), (16, 1235848), (32, 617924), (64, 308962), (128, 154481), (241, 82048), (482, 41024), (641, 30848), (964, 20512), (1282, 15424), (1928, 10256), (2564, 7712), (3856, 5128)]