19786504

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1993}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 39840120

約数和(自身を除く): 20053616

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 1993, 2482, 3986, 4964, 7972, 9928, 15944, 33881, 67762, 135524, 145489, 271048, 290978, 581956, 1163912, 2473313, 4946626, 9893252, 19786504]

約数ペア:

[(1, 19786504), (2, 9893252), (4, 4946626), (8, 2473313), (17, 1163912), (34, 581956), (68, 290978), (73, 271048), (136, 145489), (146, 135524), (292, 67762), (584, 33881), (1241, 15944), (1993, 9928), (2482, 7972), (3986, 4964)]