18770499

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 14251581

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 57, 99, 153, 171, 187, 209, 323, 561, 587, 627, 969, 1683, 1761, 1881, 2907, 3553, 5283, 6457, 9979, 10659, 11153, 19371, 29937, 31977, 33459, 58113, 89811, 100377, 109769, 122683, 189601, 329307, 368049, 568803, 987921, 1104147, 1706409, 2085611, 6256833, 18770499]

約数ペア:

[(1, 18770499), (3, 6256833), (9, 2085611), (11, 1706409), (17, 1104147), (19, 987921), (33, 568803), (51, 368049), (57, 329307), (99, 189601), (153, 122683), (171, 109769), (187, 100377), (209, 89811), (323, 58113), (561, 33459), (587, 31977), (627, 29937), (969, 19371), (1683, 11153), (1761, 10659), (1881, 9979), (2907, 6457), (3553, 5283)]