21538438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4463}}^1$

素因数の和:4611

約数の個数: 16

約数和(自身を含む): 34283520

約数和(自身を除く): 12745082

約数列:

[1, 2, 19, 38, 127, 254, 2413, 4463, 4826, 8926, 84797, 169594, 566801, 1133602, 10769219, 21538438]

約数ペア:

[(1, 21538438), (2, 10769219), (19, 1133602), (38, 566801), (127, 169594), (254, 84797), (2413, 8926), (4463, 4826)]