21511168

素因数分解:

$2^{10}\times 7^1\times {\mathrm{3001}}^1$

素因数の和:3028

約数の個数: 44

約数和(自身を含む): 49160752

約数和(自身を除く): 27649584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 3001, 3584, 6002, 7168, 12004, 21007, 24008, 42014, 48016, 84028, 96032, 168056, 192064, 336112, 384128, 672224, 768256, 1344448, 1536512, 2688896, 3073024, 5377792, 10755584, 21511168]

約数ペア:

[(1, 21511168), (2, 10755584), (4, 5377792), (7, 3073024), (8, 2688896), (14, 1536512), (16, 1344448), (28, 768256), (32, 672224), (56, 384128), (64, 336112), (112, 192064), (128, 168056), (224, 96032), (256, 84028), (448, 48016), (512, 42014), (896, 24008), (1024, 21007), (1792, 12004), (3001, 7168), (3584, 6002)]