639954

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{1693}}^1$

素因数の和:1711

約数の個数: 32

約数和(自身を含む): 1626240

約数和(自身を除く): 986286

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 1693, 3386, 5079, 10158, 11851, 15237, 23702, 30474, 35553, 45711, 71106, 91422, 106659, 213318, 319977, 639954]

約数ペア:

[(1, 639954), (2, 319977), (3, 213318), (6, 106659), (7, 91422), (9, 71106), (14, 45711), (18, 35553), (21, 30474), (27, 23702), (42, 15237), (54, 11851), (63, 10158), (126, 5079), (189, 3386), (378, 1693)]