20458438

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{929}}^1$

素因数の和:973

約数の個数: 48

約数和(自身を含む): 41559840

約数和(自身を除く): 21101402

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 121, 143, 154, 182, 242, 286, 847, 929, 1001, 1573, 1694, 1858, 2002, 3146, 6503, 10219, 11011, 12077, 13006, 20438, 22022, 24154, 71533, 84539, 112409, 132847, 143066, 169078, 224818, 265694, 786863, 929929, 1461317, 1573726, 1859858, 2922634, 10229219, 20458438]

約数ペア:

[(1, 20458438), (2, 10229219), (7, 2922634), (11, 1859858), (13, 1573726), (14, 1461317), (22, 929929), (26, 786863), (77, 265694), (91, 224818), (121, 169078), (143, 143066), (154, 132847), (182, 112409), (242, 84539), (286, 71533), (847, 24154), (929, 22022), (1001, 20438), (1573, 13006), (1694, 12077), (1858, 11011), (2002, 10219), (3146, 6503)]