21013221344

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{1811}}^1\times {\mathrm{5107}}^1$

素因数の和:6999

約数の個数: 48

約数和(自身を含む): 41983837056

約数和(自身を除く): 20970615712

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 1811, 2272, 3622, 5107, 7244, 10214, 14488, 20428, 28976, 40856, 57952, 81712, 128581, 163424, 257162, 362597, 514324, 725194, 1028648, 1450388, 2057296, 2900776, 4114592, 5801552, 9248777, 11603104, 18497554, 36995108, 73990216, 147980432, 295960864, 656663167, 1313326334, 2626652668, 5253305336, 10506610672, 21013221344]

約数ペア:

[(1, 21013221344), (2, 10506610672), (4, 5253305336), (8, 2626652668), (16, 1313326334), (32, 656663167), (71, 295960864), (142, 147980432), (284, 73990216), (568, 36995108), (1136, 18497554), (1811, 11603104), (2272, 9248777), (3622, 5801552), (5107, 4114592), (7244, 2900776), (10214, 2057296), (14488, 1450388), (20428, 1028648), (28976, 725194), (40856, 514324), (57952, 362597), (81712, 257162), (128581, 163424)]