21985502

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{389}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 41333760

約数和(自身を除く): 19348258

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 367, 389, 734, 778, 2569, 2723, 4037, 4279, 5138, 5446, 8074, 8558, 28259, 29953, 56518, 59906, 142763, 285526, 999341, 1570393, 1998682, 3140786, 10992751, 21985502]

約数ペア:

[(1, 21985502), (2, 10992751), (7, 3140786), (11, 1998682), (14, 1570393), (22, 999341), (77, 285526), (154, 142763), (367, 59906), (389, 56518), (734, 29953), (778, 28259), (2569, 8558), (2723, 8074), (4037, 5446), (4279, 5138)]