19497610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{491}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 40489632

約数和(自身を除く): 20992022

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 361, 418, 491, 722, 982, 1045, 1805, 2090, 2455, 3610, 3971, 4910, 5401, 7942, 9329, 10802, 18658, 19855, 27005, 39710, 46645, 54010, 93290, 102619, 177251, 205238, 354502, 513095, 886255, 1026190, 1772510, 1949761, 3899522, 9748805, 19497610]

約数ペア:

[(1, 19497610), (2, 9748805), (5, 3899522), (10, 1949761), (11, 1772510), (19, 1026190), (22, 886255), (38, 513095), (55, 354502), (95, 205238), (110, 177251), (190, 102619), (209, 93290), (361, 54010), (418, 46645), (491, 39710), (722, 27005), (982, 19855), (1045, 18658), (1805, 10802), (2090, 9329), (2455, 7942), (3610, 5401), (3971, 4910)]