21000503482

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{3067}}^1$

素因数の和:3347

約数の個数: 64

約数和(自身を含む): 37605335040

約数和(自身を除く): 16604831558

約数列:

[1, 2, 7, 14, 41, 79, 82, 151, 158, 287, 302, 553, 574, 1057, 1106, 2114, 3067, 3239, 6134, 6191, 6478, 11929, 12382, 21469, 22673, 23858, 42938, 43337, 45346, 83503, 86674, 125747, 167006, 242293, 251494, 463117, 484586, 489089, 880229, 926234, 978178, 1696051, 1760458, 3241819, 3392102, 3423623, 6483638, 6847246, 9934013, 18987797, 19868026, 36586243, 37975594, 69538091, 73172486, 132914579, 139076182, 256103701, 265829158, 512207402, 1500035963, 3000071926, 10500251741, 21000503482]

約数ペア:

[(1, 21000503482), (2, 10500251741), (7, 3000071926), (14, 1500035963), (41, 512207402), (79, 265829158), (82, 256103701), (151, 139076182), (158, 132914579), (287, 73172486), (302, 69538091), (553, 37975594), (574, 36586243), (1057, 19868026), (1106, 18987797), (2114, 9934013), (3067, 6847246), (3239, 6483638), (6134, 3423623), (6191, 3392102), (6478, 3241819), (11929, 1760458), (12382, 1696051), (21469, 978178), (22673, 926234), (23858, 880229), (42938, 489089), (43337, 484586), (45346, 463117), (83503, 251494), (86674, 242293), (125747, 167006)]