28715631

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{911}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 46694400

約数和(自身を除く): 17978769

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 911, 1501, 1659, 2733, 4503, 6377, 10507, 17309, 19131, 31521, 51927, 71969, 121163, 215907, 363489, 503783, 1367411, 1511349, 4102233, 9571877, 28715631]

約数ペア:

[(1, 28715631), (3, 9571877), (7, 4102233), (19, 1511349), (21, 1367411), (57, 503783), (79, 363489), (133, 215907), (237, 121163), (399, 71969), (553, 51927), (911, 31521), (1501, 19131), (1659, 17309), (2733, 10507), (4503, 6377)]