19990278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{14423}}^1$

素因数の和:14449

約数の個数: 48

約数和(自身を含む): 54003456

約数和(自身を除く): 34013178

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386, 14423, 28846, 43269, 86538, 100961, 129807, 158653, 201922, 259614, 302883, 317306, 475959, 605766, 908649, 951918, 1110571, 1427877, 1817298, 2221142, 2855754, 3331713, 6663426, 9995139, 19990278]

約数ペア:

[(1, 19990278), (2, 9995139), (3, 6663426), (6, 3331713), (7, 2855754), (9, 2221142), (11, 1817298), (14, 1427877), (18, 1110571), (21, 951918), (22, 908649), (33, 605766), (42, 475959), (63, 317306), (66, 302883), (77, 259614), (99, 201922), (126, 158653), (154, 129807), (198, 100961), (231, 86538), (462, 43269), (693, 28846), (1386, 14423)]