19857904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6637}}^1$

素因数の和:6673

約数の個数: 40

約数和(自身を含む): 44448048

約数和(自身を除く): 24590144

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6637, 13274, 26548, 53096, 73007, 106192, 112829, 146014, 225658, 292028, 451316, 584056, 902632, 1168112, 1241119, 1805264, 2482238, 4964476, 9928952, 19857904]

約数ペア:

[(1, 19857904), (2, 9928952), (4, 4964476), (8, 2482238), (11, 1805264), (16, 1241119), (17, 1168112), (22, 902632), (34, 584056), (44, 451316), (68, 292028), (88, 225658), (136, 146014), (176, 112829), (187, 106192), (272, 73007), (374, 53096), (748, 26548), (1496, 13274), (2992, 6637)]