21095856

素因数分解:

$2^4\times 3^3\times {\mathrm{47}}^1\times {\mathrm{1039}}^1$

素因数の和:1103

約数の個数: 80

約数和(自身を含む): 61900800

約数和(自身を除く): 40804944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 47, 48, 54, 72, 94, 108, 141, 144, 188, 216, 282, 376, 423, 432, 564, 752, 846, 1039, 1128, 1269, 1692, 2078, 2256, 2538, 3117, 3384, 4156, 5076, 6234, 6768, 8312, 9351, 10152, 12468, 16624, 18702, 20304, 24936, 28053, 37404, 48833, 49872, 56106, 74808, 97666, 112212, 146499, 149616, 195332, 224424, 292998, 390664, 439497, 448848, 585996, 781328, 878994, 1171992, 1318491, 1757988, 2343984, 2636982, 3515976, 5273964, 7031952, 10547928, 21095856]

約数ペア:

[(1, 21095856), (2, 10547928), (3, 7031952), (4, 5273964), (6, 3515976), (8, 2636982), (9, 2343984), (12, 1757988), (16, 1318491), (18, 1171992), (24, 878994), (27, 781328), (36, 585996), (47, 448848), (48, 439497), (54, 390664), (72, 292998), (94, 224424), (108, 195332), (141, 149616), (144, 146499), (188, 112212), (216, 97666), (282, 74808), (376, 56106), (423, 49872), (432, 48833), (564, 37404), (752, 28053), (846, 24936), (1039, 20304), (1128, 18702), (1269, 16624), (1692, 12468), (2078, 10152), (2256, 9351), (2538, 8312), (3117, 6768), (3384, 6234), (4156, 5076)]