21709930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8581}}^1$

素因数の和:8622

約数の個数: 32

約数和(自身を含む): 44489088

約数和(自身を除く): 22779158

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8581, 17162, 42905, 85810, 94391, 188782, 197363, 394726, 471955, 943910, 986815, 1973630, 2170993, 4341986, 10854965, 21709930]

約数ペア:

[(1, 21709930), (2, 10854965), (5, 4341986), (10, 2170993), (11, 1973630), (22, 986815), (23, 943910), (46, 471955), (55, 394726), (110, 197363), (115, 188782), (230, 94391), (253, 85810), (506, 42905), (1265, 17162), (2530, 8581)]