18563584

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2789}}^1$

素因数の和:2820

約数の個数: 40

約数和(自身を含む): 39958380

約数和(自身を除く): 21394796

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 2789, 3328, 5578, 6656, 11156, 22312, 36257, 44624, 72514, 89248, 145028, 178496, 290056, 356992, 580112, 713984, 1160224, 1427968, 2320448, 4640896, 9281792, 18563584]

約数ペア:

[(1, 18563584), (2, 9281792), (4, 4640896), (8, 2320448), (13, 1427968), (16, 1160224), (26, 713984), (32, 580112), (52, 356992), (64, 290056), (104, 178496), (128, 145028), (208, 89248), (256, 72514), (416, 44624), (512, 36257), (832, 22312), (1664, 11156), (2789, 6656), (3328, 5578)]