389979009

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:995

約数の個数: 64

約数和(自身を含む): 701184000

約数和(自身を除く): 311204991

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 131, 133, 171, 189, 393, 399, 513, 829, 917, 1179, 1197, 2487, 2489, 2751, 3537, 3591, 5803, 7461, 7467, 8253, 15751, 17409, 17423, 22383, 22401, 24759, 47253, 52227, 52269, 67203, 108599, 110257, 141759, 156681, 156807, 325797, 330771, 425277, 470421, 760193, 977391, 992313, 2063381, 2280579, 2932173, 2976939, 6190143, 6841737, 14443667, 18570429, 20525211, 43331001, 55711287, 129993003, 389979009]

約数ペア:

[(1, 389979009), (3, 129993003), (7, 55711287), (9, 43331001), (19, 20525211), (21, 18570429), (27, 14443667), (57, 6841737), (63, 6190143), (131, 2976939), (133, 2932173), (171, 2280579), (189, 2063381), (393, 992313), (399, 977391), (513, 760193), (829, 470421), (917, 425277), (1179, 330771), (1197, 325797), (2487, 156807), (2489, 156681), (2751, 141759), (3537, 110257), (3591, 108599), (5803, 67203), (7461, 52269), (7467, 52227), (8253, 47253), (15751, 24759), (17409, 22401), (17423, 22383)]