21165336

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{12781}}^1$

素因数の和:12816

約数の個数: 48

約数和(自身を含む): 59819760

約数和(自身を除く): 38654424

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656, 12781, 25562, 38343, 51124, 76686, 102248, 115029, 153372, 230058, 293963, 306744, 460116, 587926, 881889, 920232, 1175852, 1763778, 2351704, 2645667, 3527556, 5291334, 7055112, 10582668, 21165336]

約数ペア:

[(1, 21165336), (2, 10582668), (3, 7055112), (4, 5291334), (6, 3527556), (8, 2645667), (9, 2351704), (12, 1763778), (18, 1175852), (23, 920232), (24, 881889), (36, 587926), (46, 460116), (69, 306744), (72, 293963), (92, 230058), (138, 153372), (184, 115029), (207, 102248), (276, 76686), (414, 51124), (552, 38343), (828, 25562), (1656, 12781)]