21952425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 41559840

約数和(自身を除く): 19607415

約数列:

[1, 3, 5, 11, 15, 25, 33, 41, 55, 59, 75, 121, 123, 165, 177, 205, 275, 295, 363, 451, 605, 615, 649, 825, 885, 1025, 1353, 1475, 1815, 1947, 2255, 2419, 3025, 3075, 3245, 4425, 4961, 6765, 7139, 7257, 9075, 9735, 11275, 12095, 14883, 16225, 21417, 24805, 26609, 33825, 35695, 36285, 48675, 60475, 74415, 79827, 107085, 124025, 133045, 178475, 181425, 292699, 372075, 399135, 535425, 665225, 878097, 1463495, 1995675, 4390485, 7317475, 21952425]

約数ペア:

[(1, 21952425), (3, 7317475), (5, 4390485), (11, 1995675), (15, 1463495), (25, 878097), (33, 665225), (41, 535425), (55, 399135), (59, 372075), (75, 292699), (121, 181425), (123, 178475), (165, 133045), (177, 124025), (205, 107085), (275, 79827), (295, 74415), (363, 60475), (451, 48675), (605, 36285), (615, 35695), (649, 33825), (825, 26609), (885, 24805), (1025, 21417), (1353, 16225), (1475, 14883), (1815, 12095), (1947, 11275), (2255, 9735), (2419, 9075), (3025, 7257), (3075, 7139), (3245, 6765), (4425, 4961)]