645954837

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{971}}^1\times {\mathrm{1061}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 990973440

約数和(自身を除く): 345018603

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 971, 1061, 2913, 3183, 10681, 11671, 18449, 20159, 32043, 35013, 55347, 60477, 202939, 221749, 608817, 665247, 1030231, 3090693, 11332541, 19574389, 33997623, 58723167, 215318279, 645954837]

約数ペア:

[(1, 645954837), (3, 215318279), (11, 58723167), (19, 33997623), (33, 19574389), (57, 11332541), (209, 3090693), (627, 1030231), (971, 665247), (1061, 608817), (2913, 221749), (3183, 202939), (10681, 60477), (11671, 55347), (18449, 35013), (20159, 32043)]