21597984

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{3947}}^1$

素因数の和:3982

約数の個数: 72

約数和(自身を含む): 64668240

約数和(自身を除く): 43070256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 57, 72, 76, 96, 114, 144, 152, 171, 228, 288, 304, 342, 456, 608, 684, 912, 1368, 1824, 2736, 3947, 5472, 7894, 11841, 15788, 23682, 31576, 35523, 47364, 63152, 71046, 74993, 94728, 126304, 142092, 149986, 189456, 224979, 284184, 299972, 378912, 449958, 568368, 599944, 674937, 899916, 1136736, 1199888, 1349874, 1799832, 2399776, 2699748, 3599664, 5399496, 7199328, 10798992, 21597984]

約数ペア:

[(1, 21597984), (2, 10798992), (3, 7199328), (4, 5399496), (6, 3599664), (8, 2699748), (9, 2399776), (12, 1799832), (16, 1349874), (18, 1199888), (19, 1136736), (24, 899916), (32, 674937), (36, 599944), (38, 568368), (48, 449958), (57, 378912), (72, 299972), (76, 284184), (96, 224979), (114, 189456), (144, 149986), (152, 142092), (171, 126304), (228, 94728), (288, 74993), (304, 71046), (342, 63152), (456, 47364), (608, 35523), (684, 31576), (912, 23682), (1368, 15788), (1824, 11841), (2736, 7894), (3947, 5472)]