18645284

素因数分解:

$2^2\times 7^2\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:648

約数の個数: 36

約数和(自身を含む): 38208240

約数和(自身を除く): 19562956

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 251, 379, 502, 758, 1004, 1516, 1757, 2653, 3514, 5306, 7028, 10612, 12299, 18571, 24598, 37142, 49196, 74284, 95129, 190258, 380516, 665903, 1331806, 2663612, 4661321, 9322642, 18645284]

約数ペア:

[(1, 18645284), (2, 9322642), (4, 4661321), (7, 2663612), (14, 1331806), (28, 665903), (49, 380516), (98, 190258), (196, 95129), (251, 74284), (379, 49196), (502, 37142), (758, 24598), (1004, 18571), (1516, 12299), (1757, 10612), (2653, 7028), (3514, 5306)]