18978736

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4133}}^1$

素因数の和:4189

約数の個数: 40

約数和(自身を含む): 43059744

約数和(自身を除く): 24081008

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4133, 4592, 8266, 16532, 28931, 33064, 57862, 66128, 115724, 169453, 231448, 338906, 462896, 677812, 1186171, 1355624, 2372342, 2711248, 4744684, 9489368, 18978736]

約数ペア:

[(1, 18978736), (2, 9489368), (4, 4744684), (7, 2711248), (8, 2372342), (14, 1355624), (16, 1186171), (28, 677812), (41, 462896), (56, 338906), (82, 231448), (112, 169453), (164, 115724), (287, 66128), (328, 57862), (574, 33064), (656, 28931), (1148, 16532), (2296, 8266), (4133, 4592)]