20026605

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 33390720

約数和(自身を除く): 13364115

約数列:

[1, 3, 5, 15, 43, 61, 129, 183, 215, 305, 509, 645, 915, 1527, 2545, 2623, 7635, 7869, 13115, 21887, 31049, 39345, 65661, 93147, 109435, 155245, 328305, 465735, 1335107, 4005321, 6675535, 20026605]

約数ペア:

[(1, 20026605), (3, 6675535), (5, 4005321), (15, 1335107), (43, 465735), (61, 328305), (129, 155245), (183, 109435), (215, 93147), (305, 65661), (509, 39345), (645, 31049), (915, 21887), (1527, 13115), (2545, 7869), (2623, 7635)]