19991454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1187}}^1$

素因数の和:1600

約数の個数: 32

約数和(自身を含む): 45847296

約数和(自身を除く): 25855842

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 401, 802, 1187, 1203, 2374, 2406, 2807, 3561, 5614, 7122, 8309, 8421, 16618, 16842, 24927, 49854, 475987, 951974, 1427961, 2855922, 3331909, 6663818, 9995727, 19991454]

約数ペア:

[(1, 19991454), (2, 9995727), (3, 6663818), (6, 3331909), (7, 2855922), (14, 1427961), (21, 951974), (42, 475987), (401, 49854), (802, 24927), (1187, 16842), (1203, 16618), (2374, 8421), (2406, 8309), (2807, 7122), (3561, 5614)]