21779168

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{317}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 45677520

約数和(自身を除く): 23898352

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 113, 152, 226, 304, 317, 452, 608, 634, 904, 1268, 1808, 2147, 2536, 3616, 4294, 5072, 6023, 8588, 10144, 12046, 17176, 24092, 34352, 35821, 48184, 68704, 71642, 96368, 143284, 192736, 286568, 573136, 680599, 1146272, 1361198, 2722396, 5444792, 10889584, 21779168]

約数ペア:

[(1, 21779168), (2, 10889584), (4, 5444792), (8, 2722396), (16, 1361198), (19, 1146272), (32, 680599), (38, 573136), (76, 286568), (113, 192736), (152, 143284), (226, 96368), (304, 71642), (317, 68704), (452, 48184), (608, 35821), (634, 34352), (904, 24092), (1268, 17176), (1808, 12046), (2147, 10144), (2536, 8588), (3616, 6023), (4294, 5072)]