21121514

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{14447}}^1$

素因数の和:14509

約数の個数: 16

約数和(自身を含む): 34328448

約数和(自身を除く): 13206934

約数列:

[1, 2, 17, 34, 43, 86, 731, 1462, 14447, 28894, 245599, 491198, 621221, 1242442, 10560757, 21121514]

約数ペア:

[(1, 21121514), (2, 10560757), (17, 1242442), (34, 621221), (43, 491198), (86, 245599), (731, 28894), (1462, 14447)]