21000643215

素因数分解:

$3^1\times 5^1\times {\mathrm{18049}}^1\times {\mathrm{77569}}^1$

素因数の和:95626

約数の個数: 16

約数和(自身を含む): 33603324000

約数和(自身を除く): 12602680785

約数列:

[1, 3, 5, 15, 18049, 54147, 77569, 90245, 232707, 270735, 387845, 1163535, 1400042881, 4200128643, 7000214405, 21000643215]

約数ペア:

[(1, 21000643215), (3, 7000214405), (5, 4200128643), (15, 1400042881), (18049, 1163535), (54147, 387845), (77569, 270735), (90245, 232707)]