21041229

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 10684851

約数列:

[1, 3, 11, 33, 59, 101, 107, 177, 303, 321, 649, 1111, 1177, 1947, 3333, 3531, 5959, 6313, 10807, 17877, 18939, 32421, 65549, 69443, 118877, 196647, 208329, 356631, 637613, 1912839, 7013743, 21041229]

約数ペア:

[(1, 21041229), (3, 7013743), (11, 1912839), (33, 637613), (59, 356631), (101, 208329), (107, 196647), (177, 118877), (303, 69443), (321, 65549), (649, 32421), (1111, 18939), (1177, 17877), (1947, 10807), (3333, 6313), (3531, 5959)]