20594518

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 16903082

約数列:

[1, 2, 7, 14, 19, 38, 133, 139, 266, 278, 557, 973, 1114, 1946, 2641, 3899, 5282, 7798, 10583, 18487, 21166, 36974, 74081, 77423, 148162, 154846, 541961, 1083922, 1471037, 2942074, 10297259, 20594518]

約数ペア:

[(1, 20594518), (2, 10297259), (7, 2942074), (14, 1471037), (19, 1083922), (38, 541961), (133, 154846), (139, 148162), (266, 77423), (278, 74081), (557, 36974), (973, 21166), (1114, 18487), (1946, 10583), (2641, 7798), (3899, 5282)]