21511902

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{210901}}^1$

素因数の和:210923

約数の個数: 16

約数和(自身を含む): 45554832

約数和(自身を除く): 24042930

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 210901, 421802, 632703, 1265406, 3585317, 7170634, 10755951, 21511902]

約数ペア:

[(1, 21511902), (2, 10755951), (3, 7170634), (6, 3585317), (17, 1265406), (34, 632703), (51, 421802), (102, 210901)]