21960804536

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1\times {\mathrm{3257}}^1$

素因数の和:3864

約数の個数: 64

約数和(自身を含む): 45280205280

約数和(自身を除く): 23319400744

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 193, 386, 397, 772, 794, 1544, 1588, 2123, 3176, 3257, 4246, 4367, 6514, 8492, 8734, 13028, 16984, 17468, 26056, 34936, 35827, 71654, 76621, 143308, 153242, 286616, 306484, 612968, 628601, 842831, 1257202, 1293029, 1685662, 2514404, 2586058, 3371324, 5028808, 5172116, 6742648, 6914611, 10344232, 13829222, 14223319, 27658444, 28446638, 55316888, 56893276, 113786552, 249554597, 499109194, 998218388, 1996436776, 2745100567, 5490201134, 10980402268, 21960804536]

約数ペア:

[(1, 21960804536), (2, 10980402268), (4, 5490201134), (8, 2745100567), (11, 1996436776), (22, 998218388), (44, 499109194), (88, 249554597), (193, 113786552), (386, 56893276), (397, 55316888), (772, 28446638), (794, 27658444), (1544, 14223319), (1588, 13829222), (2123, 10344232), (3176, 6914611), (3257, 6742648), (4246, 5172116), (4367, 5028808), (6514, 3371324), (8492, 2586058), (8734, 2514404), (13028, 1685662), (16984, 1293029), (17468, 1257202), (26056, 842831), (34936, 628601), (35827, 612968), (71654, 306484), (76621, 286616), (143308, 153242)]