21019472

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69143}}^1$

素因数の和:69170

約数の個数: 20

約数和(自身を含む): 42869280

約数和(自身を除く): 21849808

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69143, 138286, 276572, 553144, 1106288, 1313717, 2627434, 5254868, 10509736, 21019472]

約数ペア:

[(1, 21019472), (2, 10509736), (4, 5254868), (8, 2627434), (16, 1313717), (19, 1106288), (38, 553144), (76, 276572), (152, 138286), (304, 69143)]