221570908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1723}}^1\times {\mathrm{2473}}^1$

素因数の和:4213

約数の個数: 24

約数和(自身を含む): 417987248

約数和(自身を除く): 196416340

約数列:

[1, 2, 4, 13, 26, 52, 1723, 2473, 3446, 4946, 6892, 9892, 22399, 32149, 44798, 64298, 89596, 128596, 4260979, 8521958, 17043916, 55392727, 110785454, 221570908]

約数ペア:

[(1, 221570908), (2, 110785454), (4, 55392727), (13, 17043916), (26, 8521958), (52, 4260979), (1723, 128596), (2473, 89596), (3446, 64298), (4946, 44798), (6892, 32149), (9892, 22399)]