21490266

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13829}}^1$

素因数の和:13878

約数の個数: 32

約数和(自身を含む): 50451840

約数和(自身を除く): 28961574

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13829, 27658, 41487, 82974, 96803, 193606, 290409, 511673, 580818, 1023346, 1535019, 3070038, 3581711, 7163422, 10745133, 21490266]

約数ペア:

[(1, 21490266), (2, 10745133), (3, 7163422), (6, 3581711), (7, 3070038), (14, 1535019), (21, 1023346), (37, 580818), (42, 511673), (74, 290409), (111, 193606), (222, 96803), (259, 82974), (518, 41487), (777, 27658), (1554, 13829)]