21079569

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2297}}^1$

素因数の和:2349

約数の個数: 32

約数和(自身を含む): 35297280

約数和(自身を除く): 14217711

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 2297, 3059, 6891, 9177, 16079, 43643, 48237, 52831, 130929, 158493, 305501, 369817, 916503, 1003789, 1109451, 3011367, 7026523, 21079569]

約数ペア:

[(1, 21079569), (3, 7026523), (7, 3011367), (19, 1109451), (21, 1003789), (23, 916503), (57, 369817), (69, 305501), (133, 158493), (161, 130929), (399, 52831), (437, 48237), (483, 43643), (1311, 16079), (2297, 9177), (3059, 6891)]