21590504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3917}}^1$

素因数の和:3989

約数の個数: 32

約数和(自身を含む): 44430120

約数和(自身を除く): 22839616

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3917, 5512, 7834, 15668, 31336, 50921, 101842, 203684, 207601, 407368, 415202, 830404, 1660808, 2698813, 5397626, 10795252, 21590504]

約数ペア:

[(1, 21590504), (2, 10795252), (4, 5397626), (8, 2698813), (13, 1660808), (26, 830404), (52, 415202), (53, 407368), (104, 207601), (106, 203684), (212, 101842), (424, 50921), (689, 31336), (1378, 15668), (2756, 7834), (3917, 5512)]