21093178

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{727}}^1$

素因数の和:981

約数の個数: 16

約数和(自身を含む): 32235840

約数和(自身を除く): 11142662

約数列:

[1, 2, 89, 163, 178, 326, 727, 1454, 14507, 29014, 64703, 118501, 129406, 237002, 10546589, 21093178]

約数ペア:

[(1, 21093178), (2, 10546589), (89, 237002), (163, 129406), (178, 118501), (326, 64703), (727, 29014), (1454, 14507)]