21287706

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{18973}}^1$

素因数の和:19006

約数の個数: 32

約数和(自身を含む): 49180608

約数和(自身を除く): 27892902

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 187, 374, 561, 1122, 18973, 37946, 56919, 113838, 208703, 322541, 417406, 626109, 645082, 967623, 1252218, 1935246, 3547951, 7095902, 10643853, 21287706]

約数ペア:

[(1, 21287706), (2, 10643853), (3, 7095902), (6, 3547951), (11, 1935246), (17, 1252218), (22, 967623), (33, 645082), (34, 626109), (51, 417406), (66, 322541), (102, 208703), (187, 113838), (374, 56919), (561, 37946), (1122, 18973)]