20732504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{641}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 42063840

約数和(自身を除く): 21331336

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 311, 622, 641, 1244, 1282, 2488, 2564, 4043, 5128, 8086, 8333, 16172, 16666, 32344, 33332, 66664, 199351, 398702, 797404, 1594808, 2591563, 5183126, 10366252, 20732504]

約数ペア:

[(1, 20732504), (2, 10366252), (4, 5183126), (8, 2591563), (13, 1594808), (26, 797404), (52, 398702), (104, 199351), (311, 66664), (622, 33332), (641, 32344), (1244, 16666), (1282, 16172), (2488, 8333), (2564, 8086), (4043, 5128)]