199993131

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:527

約数の個数: 56

約数和(自身を含む): 330523200

約数和(自身を除く): 130530069

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 243, 351, 423, 449, 611, 729, 1053, 1269, 1347, 1833, 3159, 3807, 4041, 5499, 5837, 9477, 11421, 12123, 16497, 17511, 21103, 34263, 36369, 49491, 52533, 63309, 109107, 148473, 157599, 189927, 274339, 327321, 445419, 472797, 569781, 823017, 1418391, 1709343, 2469051, 4255173, 5128029, 7407153, 15384087, 22221459, 66664377, 199993131]

約数ペア:

[(1, 199993131), (3, 66664377), (9, 22221459), (13, 15384087), (27, 7407153), (39, 5128029), (47, 4255173), (81, 2469051), (117, 1709343), (141, 1418391), (243, 823017), (351, 569781), (423, 472797), (449, 445419), (611, 327321), (729, 274339), (1053, 189927), (1269, 157599), (1347, 148473), (1833, 109107), (3159, 63309), (3807, 52533), (4041, 49491), (5499, 36369), (5837, 34263), (9477, 21103), (11421, 17511), (12123, 16497)]