21408288

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:151

約数の個数: 144

約数和(自身を含む): 65691360

約数和(自身を除く): 44283072

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 32, 33, 38, 44, 48, 57, 66, 76, 88, 96, 97, 114, 121, 132, 152, 176, 194, 209, 228, 242, 264, 291, 304, 352, 363, 388, 418, 456, 484, 528, 582, 608, 627, 726, 776, 836, 912, 968, 1056, 1067, 1164, 1254, 1452, 1552, 1672, 1824, 1843, 1936, 2134, 2299, 2328, 2508, 2904, 3104, 3201, 3344, 3686, 3872, 4268, 4598, 4656, 5016, 5529, 5808, 6402, 6688, 6897, 7372, 8536, 9196, 9312, 10032, 11058, 11616, 11737, 12804, 13794, 14744, 17072, 18392, 20064, 20273, 22116, 23474, 25608, 27588, 29488, 34144, 35211, 36784, 40546, 44232, 46948, 51216, 55176, 58976, 60819, 70422, 73568, 81092, 88464, 93896, 102432, 110352, 121638, 140844, 162184, 176928, 187792, 220704, 223003, 243276, 281688, 324368, 375584, 446006, 486552, 563376, 648736, 669009, 892012, 973104, 1126752, 1338018, 1784024, 1946208, 2676036, 3568048, 5352072, 7136096, 10704144, 21408288]

約数ペア:

[(1, 21408288), (2, 10704144), (3, 7136096), (4, 5352072), (6, 3568048), (8, 2676036), (11, 1946208), (12, 1784024), (16, 1338018), (19, 1126752), (22, 973104), (24, 892012), (32, 669009), (33, 648736), (38, 563376), (44, 486552), (48, 446006), (57, 375584), (66, 324368), (76, 281688), (88, 243276), (96, 223003), (97, 220704), (114, 187792), (121, 176928), (132, 162184), (152, 140844), (176, 121638), (194, 110352), (209, 102432), (228, 93896), (242, 88464), (264, 81092), (291, 73568), (304, 70422), (352, 60819), (363, 58976), (388, 55176), (418, 51216), (456, 46948), (484, 44232), (528, 40546), (582, 36784), (608, 35211), (627, 34144), (726, 29488), (776, 27588), (836, 25608), (912, 23474), (968, 22116), (1056, 20273), (1067, 20064), (1164, 18392), (1254, 17072), (1452, 14744), (1552, 13794), (1672, 12804), (1824, 11737), (1843, 11616), (1936, 11058), (2134, 10032), (2299, 9312), (2328, 9196), (2508, 8536), (2904, 7372), (3104, 6897), (3201, 6688), (3344, 6402), (3686, 5808), (3872, 5529), (4268, 5016), (4598, 4656)]