20121904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{114329}}^1$

素因数の和:114348

約数の個数: 20

約数和(自身を含む): 42530760

約数和(自身を除く): 22408856

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 114329, 228658, 457316, 914632, 1257619, 1829264, 2515238, 5030476, 10060952, 20121904]

約数ペア:

[(1, 20121904), (2, 10060952), (4, 5030476), (8, 2515238), (11, 1829264), (16, 1257619), (22, 914632), (44, 457316), (88, 228658), (176, 114329)]