21537776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6091}}^1$

素因数の和:6129

約数の個数: 40

約数和(自身を含む): 47590704

約数和(自身を除く): 26052928

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6091, 12182, 24364, 48728, 79183, 97456, 103547, 158366, 207094, 316732, 414188, 633464, 828376, 1266928, 1346111, 1656752, 2692222, 5384444, 10768888, 21537776]

約数ペア:

[(1, 21537776), (2, 10768888), (4, 5384444), (8, 2692222), (13, 1656752), (16, 1346111), (17, 1266928), (26, 828376), (34, 633464), (52, 414188), (68, 316732), (104, 207094), (136, 158366), (208, 103547), (221, 97456), (272, 79183), (442, 48728), (884, 24364), (1768, 12182), (3536, 6091)]