18819632

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{523}}^1$

素因数の和:717

約数の個数: 40

約数和(自身を含む): 39570384

約数和(自身を除く): 20750752

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 523, 692, 1046, 1384, 2092, 2249, 2768, 4184, 4498, 6799, 8368, 8996, 13598, 17992, 27196, 35984, 54392, 90479, 108784, 180958, 361916, 723832, 1176227, 1447664, 2352454, 4704908, 9409816, 18819632]

約数ペア:

[(1, 18819632), (2, 9409816), (4, 4704908), (8, 2352454), (13, 1447664), (16, 1176227), (26, 723832), (52, 361916), (104, 180958), (173, 108784), (208, 90479), (346, 54392), (523, 35984), (692, 27196), (1046, 17992), (1384, 13598), (2092, 8996), (2249, 8368), (2768, 6799), (4184, 4498)]