21199675

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{229}}^1$

素因数の和:292

約数の個数: 36

約数和(自身を含む): 31543120

約数和(自身を除く): 10343445

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 229, 529, 575, 805, 1145, 1603, 2645, 3703, 4025, 5267, 5725, 8015, 13225, 18515, 26335, 36869, 40075, 92575, 121141, 131675, 184345, 605705, 847987, 921725, 3028525, 4239935, 21199675]

約数ペア:

[(1, 21199675), (5, 4239935), (7, 3028525), (23, 921725), (25, 847987), (35, 605705), (115, 184345), (161, 131675), (175, 121141), (229, 92575), (529, 40075), (575, 36869), (805, 26335), (1145, 18515), (1603, 13225), (2645, 8015), (3703, 5725), (4025, 5267)]