28491393

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{101}}^2$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 46981680

約数和(自身を除く): 18490287

約数列:

[1, 3, 7, 19, 21, 49, 57, 101, 133, 147, 303, 399, 707, 931, 1919, 2121, 2793, 4949, 5757, 10201, 13433, 14847, 30603, 40299, 71407, 94031, 193819, 214221, 282093, 499849, 581457, 1356733, 1499547, 4070199, 9497131, 28491393]

約数ペア:

[(1, 28491393), (3, 9497131), (7, 4070199), (19, 1499547), (21, 1356733), (49, 581457), (57, 499849), (101, 282093), (133, 214221), (147, 193819), (303, 94031), (399, 71407), (707, 40299), (931, 30603), (1919, 14847), (2121, 13433), (2793, 10201), (4949, 5757)]