21240992

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{487}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 23030368

約数列:

[1, 2, 4, 8, 16, 29, 32, 47, 58, 94, 116, 188, 232, 376, 464, 487, 752, 928, 974, 1363, 1504, 1948, 2726, 3896, 5452, 7792, 10904, 14123, 15584, 21808, 22889, 28246, 43616, 45778, 56492, 91556, 112984, 183112, 225968, 366224, 451936, 663781, 732448, 1327562, 2655124, 5310248, 10620496, 21240992]

約数ペア:

[(1, 21240992), (2, 10620496), (4, 5310248), (8, 2655124), (16, 1327562), (29, 732448), (32, 663781), (47, 451936), (58, 366224), (94, 225968), (116, 183112), (188, 112984), (232, 91556), (376, 56492), (464, 45778), (487, 43616), (752, 28246), (928, 22889), (974, 21808), (1363, 15584), (1504, 14123), (1948, 10904), (2726, 7792), (3896, 5452)]