19911008

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2127

約数の個数: 48

約数和(自身を含む): 44071776

約数和(自身を除く): 24160768

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 92, 104, 184, 208, 299, 368, 416, 598, 736, 1196, 2081, 2392, 4162, 4784, 8324, 9568, 16648, 27053, 33296, 47863, 54106, 66592, 95726, 108212, 191452, 216424, 382904, 432848, 622219, 765808, 865696, 1244438, 1531616, 2488876, 4977752, 9955504, 19911008]

約数ペア:

[(1, 19911008), (2, 9955504), (4, 4977752), (8, 2488876), (13, 1531616), (16, 1244438), (23, 865696), (26, 765808), (32, 622219), (46, 432848), (52, 382904), (92, 216424), (104, 191452), (184, 108212), (208, 95726), (299, 66592), (368, 54106), (416, 47863), (598, 33296), (736, 27053), (1196, 16648), (2081, 9568), (2392, 8324), (4162, 4784)]