21000751968

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31251119}}^1$

素因数の和:31251139

約数の個数: 48

約数和(自身を含む): 63002257920

約数和(自身を除く): 42001505952

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 31251119, 62502238, 93753357, 125004476, 187506714, 218757833, 250008952, 375013428, 437515666, 500017904, 656273499, 750026856, 875031332, 1000035808, 1312546998, 1500053712, 1750062664, 2625093996, 3000107424, 3500125328, 5250187992, 7000250656, 10500375984, 21000751968]

約数ペア:

[(1, 21000751968), (2, 10500375984), (3, 7000250656), (4, 5250187992), (6, 3500125328), (7, 3000107424), (8, 2625093996), (12, 1750062664), (14, 1500053712), (16, 1312546998), (21, 1000035808), (24, 875031332), (28, 750026856), (32, 656273499), (42, 500017904), (48, 437515666), (56, 375013428), (84, 250008952), (96, 218757833), (112, 187506714), (168, 125004476), (224, 93753357), (336, 62502238), (672, 31251119)]