21059904

素因数分解:

$2^6\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 112

約数和(自身を含む): 61447680

約数和(自身を除く): 40387776

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 23, 24, 32, 38, 46, 48, 57, 64, 69, 76, 92, 96, 114, 138, 152, 184, 192, 228, 251, 276, 304, 368, 437, 456, 502, 552, 608, 736, 753, 874, 912, 1004, 1104, 1216, 1311, 1472, 1506, 1748, 1824, 2008, 2208, 2622, 3012, 3496, 3648, 4016, 4416, 4769, 5244, 5773, 6024, 6992, 8032, 9538, 10488, 11546, 12048, 13984, 14307, 16064, 17319, 19076, 20976, 23092, 24096, 27968, 28614, 34638, 38152, 41952, 46184, 48192, 57228, 69276, 76304, 83904, 92368, 109687, 114456, 138552, 152608, 184736, 219374, 228912, 277104, 305216, 329061, 369472, 438748, 457824, 554208, 658122, 877496, 915648, 1108416, 1316244, 1754992, 2632488, 3509984, 5264976, 7019968, 10529952, 21059904]

約数ペア:

[(1, 21059904), (2, 10529952), (3, 7019968), (4, 5264976), (6, 3509984), (8, 2632488), (12, 1754992), (16, 1316244), (19, 1108416), (23, 915648), (24, 877496), (32, 658122), (38, 554208), (46, 457824), (48, 438748), (57, 369472), (64, 329061), (69, 305216), (76, 277104), (92, 228912), (96, 219374), (114, 184736), (138, 152608), (152, 138552), (184, 114456), (192, 109687), (228, 92368), (251, 83904), (276, 76304), (304, 69276), (368, 57228), (437, 48192), (456, 46184), (502, 41952), (552, 38152), (608, 34638), (736, 28614), (753, 27968), (874, 24096), (912, 23092), (1004, 20976), (1104, 19076), (1216, 17319), (1311, 16064), (1472, 14307), (1506, 13984), (1748, 12048), (1824, 11546), (2008, 10488), (2208, 9538), (2622, 8032), (3012, 6992), (3496, 6024), (3648, 5773), (4016, 5244), (4416, 4769)]