20263965

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 33644160

約数和(自身を除く): 13380195

約数列:

[1, 3, 5, 15, 43, 89, 129, 215, 267, 353, 445, 645, 1059, 1335, 1765, 3827, 5295, 11481, 15179, 19135, 31417, 45537, 57405, 75895, 94251, 157085, 227685, 471255, 1350931, 4052793, 6754655, 20263965]

約数ペア:

[(1, 20263965), (3, 6754655), (5, 4052793), (15, 1350931), (43, 471255), (89, 227685), (129, 157085), (215, 94251), (267, 75895), (353, 57405), (445, 45537), (645, 31417), (1059, 19135), (1335, 15179), (1765, 11481), (3827, 5295)]