421761158

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:477

約数の個数: 64

約数和(自身を含む): 798916608

約数和(自身を除く): 377155450

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 127, 142, 182, 254, 257, 497, 514, 889, 923, 994, 1651, 1778, 1799, 1846, 3302, 3341, 3598, 6461, 6682, 9017, 11557, 12922, 18034, 18247, 23114, 23387, 32639, 36494, 46774, 63119, 65278, 117221, 126238, 127729, 228473, 234442, 237211, 255458, 424307, 456946, 474422, 820547, 848614, 1641094, 1660477, 2317369, 2970149, 3320954, 4634738, 5940298, 16221583, 30125797, 32443166, 60251594, 210880579, 421761158]

約数ペア:

[(1, 421761158), (2, 210880579), (7, 60251594), (13, 32443166), (14, 30125797), (26, 16221583), (71, 5940298), (91, 4634738), (127, 3320954), (142, 2970149), (182, 2317369), (254, 1660477), (257, 1641094), (497, 848614), (514, 820547), (889, 474422), (923, 456946), (994, 424307), (1651, 255458), (1778, 237211), (1799, 234442), (1846, 228473), (3302, 127729), (3341, 126238), (3598, 117221), (6461, 65278), (6682, 63119), (9017, 46774), (11557, 36494), (12922, 32639), (18034, 23387), (18247, 23114)]