21673288

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4253}}^1$

素因数の和:4286

約数の個数: 48

約数和(自身を含む): 50920380

約数和(自身を除く): 29247092

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4253, 5096, 8506, 17012, 29771, 34024, 55289, 59542, 110578, 119084, 208397, 221156, 238168, 387023, 416794, 442312, 774046, 833588, 1548092, 1667176, 2709161, 3096184, 5418322, 10836644, 21673288]

約数ペア:

[(1, 21673288), (2, 10836644), (4, 5418322), (7, 3096184), (8, 2709161), (13, 1667176), (14, 1548092), (26, 833588), (28, 774046), (49, 442312), (52, 416794), (56, 387023), (91, 238168), (98, 221156), (104, 208397), (182, 119084), (196, 110578), (364, 59542), (392, 55289), (637, 34024), (728, 29771), (1274, 17012), (2548, 8506), (4253, 5096)]