19655168

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2953}}^1$

素因数の和:2984

約数の個数: 40

約数和(自身を含む): 42307188

約数和(自身を除く): 22652020

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 2953, 3328, 5906, 6656, 11812, 23624, 38389, 47248, 76778, 94496, 153556, 188992, 307112, 377984, 614224, 755968, 1228448, 1511936, 2456896, 4913792, 9827584, 19655168]

約数ペア:

[(1, 19655168), (2, 9827584), (4, 4913792), (8, 2456896), (13, 1511936), (16, 1228448), (26, 755968), (32, 614224), (52, 377984), (64, 307112), (104, 188992), (128, 153556), (208, 94496), (256, 76778), (416, 47248), (512, 38389), (832, 23624), (1664, 11812), (2953, 6656), (3328, 5906)]