19125818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 31664640

約数和(自身を除く): 12538822

約数列:

[1, 2, 19, 37, 38, 61, 74, 122, 223, 446, 703, 1159, 1406, 2257, 2318, 4237, 4514, 8251, 8474, 13603, 16502, 27206, 42883, 85766, 156769, 258457, 313538, 503311, 516914, 1006622, 9562909, 19125818]

約数ペア:

[(1, 19125818), (2, 9562909), (19, 1006622), (37, 516914), (38, 503311), (61, 313538), (74, 258457), (122, 156769), (223, 85766), (446, 42883), (703, 27206), (1159, 16502), (1406, 13603), (2257, 8474), (2318, 8251), (4237, 4514)]