19853955

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2111}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 39536640

約数和(自身を除く): 19682685

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2111, 3135, 6333, 9405, 10555, 18999, 23221, 31665, 40109, 69663, 94995, 116105, 120327, 200545, 208989, 348315, 360981, 441199, 601635, 1044945, 1323597, 1804905, 2205995, 3970791, 6617985, 19853955]

約数ペア:

[(1, 19853955), (3, 6617985), (5, 3970791), (9, 2205995), (11, 1804905), (15, 1323597), (19, 1044945), (33, 601635), (45, 441199), (55, 360981), (57, 348315), (95, 208989), (99, 200545), (165, 120327), (171, 116105), (209, 94995), (285, 69663), (495, 40109), (627, 31665), (855, 23221), (1045, 18999), (1881, 10555), (2111, 9405), (3135, 6333)]