21009984

素因数分解:

$2^6\times 3^1\times {\mathrm{73}}^1\times {\mathrm{1499}}^1$

素因数の和:1587

約数の個数: 56

約数和(自身を含む): 56388000

約数和(自身を除く): 35378016

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 73, 96, 146, 192, 219, 292, 438, 584, 876, 1168, 1499, 1752, 2336, 2998, 3504, 4497, 4672, 5996, 7008, 8994, 11992, 14016, 17988, 23984, 35976, 47968, 71952, 95936, 109427, 143904, 218854, 287808, 328281, 437708, 656562, 875416, 1313124, 1750832, 2626248, 3501664, 5252496, 7003328, 10504992, 21009984]

約数ペア:

[(1, 21009984), (2, 10504992), (3, 7003328), (4, 5252496), (6, 3501664), (8, 2626248), (12, 1750832), (16, 1313124), (24, 875416), (32, 656562), (48, 437708), (64, 328281), (73, 287808), (96, 218854), (146, 143904), (192, 109427), (219, 95936), (292, 71952), (438, 47968), (584, 35976), (876, 23984), (1168, 17988), (1499, 14016), (1752, 11992), (2336, 8994), (2998, 7008), (3504, 5996), (4497, 4672)]