221728

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{41}}^1$

素因数の和:77

約数の個数: 36

約数和(自身を含む): 484218

約数和(自身を除く): 262490

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 169, 208, 328, 338, 416, 533, 656, 676, 1066, 1312, 1352, 2132, 2704, 4264, 5408, 6929, 8528, 13858, 17056, 27716, 55432, 110864, 221728]

約数ペア:

[(1, 221728), (2, 110864), (4, 55432), (8, 27716), (13, 17056), (16, 13858), (26, 8528), (32, 6929), (41, 5408), (52, 4264), (82, 2704), (104, 2132), (164, 1352), (169, 1312), (208, 1066), (328, 676), (338, 656), (416, 533)]